Top Quality With Niggle
I will say first I have not worn this in the water as unfortunately I am in-between sizes.
However, what I can say is that the quality of the finish and materials are some of the highest I have seen when comparing brands. Accepting I couldn't find a perfect size I can concur with Rupert that its certainly not the easiest to don, even when too large, but it is extremely warm for a 5mm.
There is another niggle, particularly when taking off, in that the Velcro neck join very easily attaches itself to the thermal lining which needs careful attention to detach without damage and I could see how this could become frustrating over time.