I'll be a downer, I guess. I really didn't like my flex loc. The huge LATCH clips made it annoying to install and it was horrible to install with the seatbelt. My son outgrew it at 4 months, when he weighed 20lbs (which I know is huge for 4 months, but he still should have fit for a little bit longer) because the harness was too tight at the loosest setting. I had the 22 lb version, though. I don't know if there is a difference between versions, but I hated that one.
It makes me really wish I hadn't chosen it based solely on color :/