I’ll be doing mostly sprints and I know these are fast in transition. What is your experience?
I don’t have any experience, but I wonder where Joe M is? 
… The Piel is the fastest and easiest wetsuit to remove - period. How much difference this really makes is dependent upon how well the wetsuit fits. It is a bit more stiffer than other wetsuits I own, but once you marginally adapt your stroke to avoid excessive neck and shoulder fatique… the difference is not unlike most full traditional wetsuit designs (of which, both fit and stroke adaption is also crucial). From a fit standpoint, it has the same limitations as anyother full traditional design single zippered wetsuit.
As for workmanship… the material and mfg. is good, but I have seen a few better. The biggest complaint is the logo… It begins to flake off after only a few years of use. You think they would have done a better job with the logo. It does take two people to put it on… but, only takes a one-armed drunk monkey to get it off in about 6-8 running steps.
I give it thumbs up for swim distances under 1000m’s (specially up to 500m-750m). But only marginal thumbs up for 1500m swim distance… sonn, I will be using the new DeSoto zippered T1 top for this distance (haven’t used one since it just came out). For longer course trithlon’s I strongly recommend the DeSoto T1. It is the most comfortable wetsuit I have worn. It’s also the wetsuit of choice for those whose’s body type doesn’t seem to allow for a full wetsuit made in the traditional design.
Bottom Line, the Piel is a good choice for short course triathlons - provided it fits. If it doesn’t fit… the T1 by DeSoto with a Zipper would be my second choice for sprint distance trithlons. For long course tri- I suggest the T1 by DeSoto. All wetsuits have particular advantages and disadvantages… which is an advantage and which is a disadvantage is dependent on course distance and fitting options.
FWIW Joe Moya