I looked at the Jamis and went with the Breezer myself. I wanted something sporty and crisp, and the numbers on the Breezer suggested to me it was the one; wheelbase a little shorter, HT a bit steeper, less fork offset, a lower BB. The frame is low and long, so that may suit you as well.

I'm 6', but shortish torsoed, so I went with the M/L, which has a 54/570 ST/TT combo. With a 110 stem, it fits me perfectly.

Ridewise, it's pretty awesome. It's very stable, but responds to rider input like a cat. It has a feel of liveliness, which is just what I wanted. Something I didn't want or anticipate was wheel/toe overlap, which is just a bit with my size 46.5 Bonts. It's totally manageable and only an issue at very low speeds, but still, it's there. All that shortness and steepness makes it feel like a scalpel, but also makes it a little twitchy out of the saddle; nothing crazy, but coming off a more relaxed bike, it's something I noticed and which caused me to think more about my technique, which is probably a good thing.

Another good thing is that the low ST allows for good seatpost extension, which in turn allows the post to 'work' damping vibrations and road shock. The Venturi with Ksyrium Equipe Ss and FSA SL-K carbon post is smoother than my 853 Lemond with Use Alien Ti post and 3x laced Velocity Aerohead rims. I think thats partly due to having more exposed seatpost, because I've always noticed similar comfort levels from MTBs with similar post lengths and Ti posts.

My feeling is that the Venturi is probably an awesome crit bike-- it turns at the hips-- and great for fast training rides. It's probably less suitable for all day rides, although it is comfy. I've only had it a month or so, and it has been snowy and cold, so I've only done short rides. We'll see'how versatile it is when I start putting miles on it, but it's such a smooth, solid platorm-- I'm 230lbs-- that I won't be surprised if it proves to be a terrific all 'rounder.

The paint on these '12 Venturis is gorgeous, too. I did a custom build on a frame with Campy because I just find the new Ultegra stuff hideous. I wish I didn't though, because I could have saved a boatload of cash off a deal like the Jenson one! With the Athena 11spd carbon, the Venturi built up to 18.5lbs, which aint bad.

My only disappointment thus far has been a failed waterbottle braze-on. It lifted right out as I put my waterbottle in for my first ride! It seems to have been held in only by paint. My LBS put a new riv nut in no problem, but while I've heard of this happening on other bikes, it's not the level of quality control I was expecting from a bike produced in a small run of 150 units (the '12 model).