Another happy TLS-350 owner here.About DUI: People who have them say they fit absolutely perfectly and are very comfortable, probably as a result of the light trilam. If cost is no object and comfort is your top priority then this is probably the best suit for you.
I've now done 90 dives with my suit in the last year.If cost is as consideration and/or actually being waterproof is important to you, then the DUI suits will disappoint you. Almost everyone I know personally who has a DUI suit says they leak. In fact, there is a joke that DUI stands for "Dry Until Immersed" and there is certainly some evidence to support that. The trilam just isn't robust enough to take any kind of punishment and there have been a lot of problems with the Apeks valves (not DUI's fault--except their choice to use them--and I'm not sure of the present status).
No leaks so far. The (latex) zip seals are showing minuscule cracks but still keep me dry.
Yes, the suit has flooded once but the only one I can blame for that is me. :blush: Not hooking up the drysuit inflator properly tends to allow the water in every time you add some air to the suit...
I've no complaints about its durability so far (including the time I lost my footing while leaving the water and rolled down the dike...)
Yes, there are cheaper trilam drysuits. I've tried a few of them and the DUI came out #1.