I replaced an entry level Blue70 suit with this high end wetsuit. The Blue70 was a good suit, but it was not the most flexible thing in the world and my shoulders would get fatigued within a few hundred yards of any swim. The Vextor ProX2 is a world apart. Through one sprint, 2 olympics and a half (all in 3 days, thanks to the TTT) I have yet to find any fault with the way this suit feels in the water. The only thing to watch is that the thinner 3mm neoprene used in areas to improve flexibility seems like it would be awfully easy to rip/tear with a fingernail if you are not careful putting the suit on. But I know that's the tradeoff for lighter more flexible material so you can hardly fault the suit for that!
Great suit, very happy with it.

Bought this suit to replace a Blue Seventy Energie. Wow, what a difference. Can't believe I actually tried to swim in the other suit. Get one of these if you find others suits too tight in the arms, shoulders and chest. Arms and shoulders are completely unrestricted. Got a great deal as Xterra was offering discounts to Columbia Triathlon entrants. Buy one...you won't regret it.