I do have a pair of these "All Season" gloves (but didn't buy them from Amazon). There are lots of different Sealskinz gloves and I refer specifically to the "All Season" as they are not all the same. I was recommended these by another user and also by an assistant in a outdoor shop who advised buying this particular version over other versions as he has seen issues with some of the others. I use them weekly in wet conditions - including using a hose pipe with my finger over the end to create a spray (can't use a nozzle as the pressure is too high and they pop off the pipe)......and they don't leak. They are warm enough for most situations including moderate winter use but they aren't designed specifically for ski wear or arctic exploration.
Yes there are two layers but, in practice, they don't separate when removing them. I wash them after use as they get mucky and occasionally treat them with a leather treatment on the palm or a Nikwax waterproofer for the remainder. I've cut the velcro attachments off with a Stanley blade as I found I didn't need a closure and it became a nuisance.
These are my first Sealskinz purchase and I recommend them and have bought a spare pair whilst they were on offer. The manufacturer sell them direct, post free and offer a warranty so can't see why you would complain about them unless they were faulty in which case you would return them.