I just bought the Quinny a couple weeks ago...our daughter is 9.5 months so we didn't need the carry cot and we have a great infant seat, so I didn't bother with the Maxi Cosi! (Which I wouldn't mind getting in the future, "IF" we have another baby)
However, we used the Bugaboo bassinet a LOT! The carry cots are great and super convenient! We always took Lauren out of her infant carrier and laid her in the bassinet! We used it in our hotel room while on vacation, it was great on walks, if she fell asleep I could just pop it off and carry it into the house! The one thing I've heard, isthat the Dreami carry cot that works with the Quinny is a bit "wobbly" (I don't personally know, like I said we don't have the carry cot and as soon as I heard that I went in to test it out for myself, but the store was sold out!)...the Bugaboo one feels like it might have the same issue though! Looking at them from a design stand point, any of them that attach to 2 little prongs in the middle of the seat aren't going to be that stable! But, that's not my complaint with the Bugaboo bassinet...the thingis a pain in the butt! It's just one frame and you basically have to decide if you want a bassinet or a seat!? For me there were times when Lauren wanted to be sitting up and looking around and then she'd get tired and it just seemed like she would've been more comfortable in the carry cot, but instead of just popping it on like the Quinny, UppaBaby, RSB, Stokke...etc, with the Bugaboo you'd have to switch the whole seat fabric...my other major issue with the Bugaboo is that the shoulder straps never got tight enough and she could literally flip herself over in the seat!
I didn't like the 3-wheel look of the Quinny at first, either! Without the seat it kinda looks like an aluminum phallic symbol! lol I originally went into the baby boutique to check out the Bugaboo Bee...and even though I've tried it out before, I decided to try the Buzz out again...what totally sold me was how comfy Lauren looked while she was in it! The seat is like neoprene wrapped memory foam, so great! It doesn't feel less stable then the Bugaboo and the ride honestly feels the same, however I haven't taken it downtown and onto the cobblestone to test it out. The Quinny is 26lbs with the seat attached! I wish it were lighter...but, it's totally manageable! The Quinny canopy isn't any smaller than the Bugaboo it's just shaped differently, the great thing is that it's telescopic so if you havea tall child who requires more head room...it moves up and down on the frame. It is wider than the Bugaboo...I haven't had any issues...but, I could see where it could be if youwere trying to get through a really tight space...all I can say is, you better have good depth perception! LOL But, that goes for the Bugaboo too...and I've also heard the UppaBaby is EVEN wider than the Quinny! Which I can't even imagine!
So here are the things I LOVE about the Quinny vs the Bugaboo:
~Adjustable Harness, Footrest, Canopy...it also has an adjustable handle that is MUCH easier than the Bugaboo to use
~The Bumper bar is on a hinge or can be completely removed
~Seat Fabric is fabulous
~It can be folded with the seat attached
~The underbasket is easier to get too...however I like the Bugaboo look much more
~The canopy has a peek a boo window, something the Bugaboo is lacking
~The coolest feature: Gas spring technology opening mechanism...my kids fight over who gets to be the one to tap the handle! LOL
The downside:
~The mechanism that keeps the stroller closed is really hard to hook! But, the weight of the seat, keeps it closed when the seat is attached and when it's not attached...there is a way to grab it so that it doesn't just POP open on you, when you are taking it out of the car!
~No cupholder...but, FYI: I stole the one of our Bugaboo, made by Bugaboo and it totally fits the Quinny SEAMLESSLY!
~The Quinny seat "seems" small...even though our 3.5yo was fine in it...but they are including the XL seat with their 2008 models!
I've taken side by side pics of our Bugaboo (Frog) and the Quinny...here's a link!
http://www.cafemom.com/journals/read.php?post_id=764860
Check out the Valco Rad...I haven't test drove it...but the video reviews I've seen are pretty favorable!
OH, if I've missed a question...let me know! I tried to answer all of them, but I'm sure I might've missed one or two! LOL