Okay, this is a long and rambly post here because I am SO wrapped up in my own 999.
I recently bought an '05 999. This has been a longtime dream of mine, owning a Ducati Superbike. I still open the door to my garage and gaze in and get all happy that it's mine and I can ride it whenever I want.
I am getting rid of my CBR600F4i now that I have the 999. I mean, the F4i is terrific. But "terrific" isn't as good as "fully awesome." This thing handles like nothing I have ever ridden. There is a spot not too far from my house that has this great double-S-curve. On my Bullet, I'll be scraping the pegs and I come out accelerating (well, as much accelerating as I can do) and my exit speed is just touching 40mph. On the F4i, I was happy that as I rode it more my exit speed went from high 40s to 56, occasionally 59 when I REALLY nail it. I rode this section on the 999, the day I brought the bike home from buying it, my exit speed was 84. Like, seriously, it's not okay how hard thing thing pulls.
I've been riding on the very comfy F4i since February, rain or shine. All this time I have been saying to anyone who cares to listen that a full liter bike is COMPLETELY unnecessary. There is no place I can let the 600 out all the way without going to jail, and now that I HAVE a liter bike, I'll say, I believe this now DOUBLY so. I haven't had a place on the street where I can go WOT safely or legally. I haven't gone fast enough to shift above 4th, and it still has two gears to go. But unlike the ZX10R I rode, there is no need to wind it up - it PULLS no matter where your revs are. And the sound it makes is unreal. It has a digital speedo. Just rolling on the throttle while going in second gear, not whacking it open or anything crazy, and the numbers do not climb by 1s. This thing just blasts out speed. Only 140hp but soooooo much torque. The 749 may well be the better street bike. But around me, anyway, the 749 and the 999 are going for pretty much the same money, so I figured I may as well get the big guy.
I find the ergos on the Ducati to be quite comfortable. It's more aggressive than the F4i, to be sure, but the F4i has the clipons above the triple tree and the pegs are lower. In fact, yesterday was the first time I've ridden the CBR since getting the Ducati and I was shocked at how tame the riding position was on the Honda. When I first got it I thought it was much sportier than what I was used to. But 600 miles on the Ducati and I have completely recalibrated. I've been commuting on it, rain or shine.
Commuting... It will tell you that this is not the way it wants you to ride it. The clutch chatters unless you give it some revs and slip it a bit. The big twin firing pulses remind you that your revs are too low. It will bake the backs of your thighs because there is so much heat coming out. In stop and go traffic my temps have crept up into the 200s and I can hear the fans on. The mirrors suck, so you learn to do the funky chicken to move your arms out of the way. But the mirrors with the signals in them are so gorgeous that I don't want to change them. (In fact what I really want are mirror extensions that are just painted extensions of the shape of the stalks, but those seem to not exist.)
My commute to my current office is not a lot of stop and go, bumper to bumper. But I crawled through downtown Joliet the day I brought it home and, ugh. I was so worried about the temp. They make low-temp fan switches for them and I think I'm going to get one.
The feel from the front brake is AMAZING. Like, they actually AMAZE me, not like I am just blowing "amazing" on a basket of chicken wings or something. An opossum darted out in front of me while zipping down rustic roads in Wisconsin and I grabbed a handful of front brake like I would on the CBR. The thing just STOPPED. And then I felt my rear wheel touch back down. It was incredible. But very controllable.
The tank is beautifully sculpted and it feels so perfect and narrow to grasp between your knees while you're riding. The seat is actually pretty comfy. Aside from the heat, I have had no discomfort in the seat area.
The pegs have 5 adjustments. Mine is currently on the lowest, rearmost setting. I personally don't find this to be too extreme for normal trafficky riding. Remember to grip the tank with your knees and use your core a little bit and weight on your wrists is nominal. It's really easy to tuck in and get out of the wind. My gut, though, might be bigger than others' and I can rest very comfortably on the back of the tank.
I have a biposto, and I have a set of Nelson-Rigg side backs and it is just as practical as my CBR. However much that is... But again I have been riding it pretty much every day rain or shine. It's a delight. And then I get home and I rub it with waxy cloths and obsess over how gorgeous the thing is. I am a rider, not a waxer. I have never had a bike before that I have been nervous to berkeley up somehow, but this is one. It is so beautiful that I am worried that I am going to blemish it. I have had exotic cars and less exotic bikes and I have never felt this way about a vehicle before. I am very in love with it.
So in my own little comparo between a middleweight Japanese sportbike and this italian superbike, I can say that if you can live with the Ducati's attitude toward your riding it, DO IT. Like, don't wait, seriously DO IT. The 999 lets you know when it wants you to change your habits.. riding position, input on the controls, lean angle, whatever. It'll tell you, "You know, you can go in deeper here. Just push the inside bar a little more, it's okay. We can go WAY faster. No? Okay, well, it's there for you when you aren't such a Bob Costas."
The Honda, on the other hand, kind of shrieks at you. "GO! GO GO GO GO GO!" Doesn't give nearly the kind of feedback you get on the 999. On the other hand, it doesn't complain about ANYTHING. Ride as sloppy as you want, it's fine. Stop and go bumper to bumper? Okay, fine. Chopping the throttle open and scraping a knee around a good corner? Okay, fine. The CBR just doesn't care.
I am completely smitten by this motorcycle. Whatever the belt service and frequent oil changes cost, I'll pay it, just so I can keep riding it. I am very, very in love.
TL;DR: DO IT.