Yes, I love my Ruby Expert. I'll be riding her in about a half hour, actually! The bike fits me really well, the drivetrain is wonderful (full Ultegra), and I haven't had any problems with the bike at all. My shifting was a little off this weekend, so I took it into the shop and the chain was stretched - after 3000 miles, so I got a new chain. That's the only maintenance I have needed on the bike so far. I have switched out the wheels, which has made the handling better, but the stock wheels are good too (I got a really good deal on a used pair of Kysriums). Specialized bikes fit me really well, and I've been happy with both of mine (I also own a 2004 Dolce that I now use for commuting).

Good luck! Let us know what you decide on. The ride of the carbon is superior to the aluminum (for me at least) and if it fits you well, you'll love this bike. Oh, and I also think the price is right, for a full carbon bike with Ultegra components.