I really like how the characters can move at reasonable speeds underwater now. Especially Simon. Water levels with Simon used to be PAINFULLY slow.
I've noticed differences with the upgrade system with different characters and some inconsistencies. It would be nice to have everything explained in full detail eventually.
I know what you mean. It would be nice if somewhere like example on the wiki all the details about the characters would be possible to see. Things like, how things work for the character, each attacks power as how much damage they do and listing every single difference for the skins that play different. This could not just help people to get to know the characters fully but also allow us to give suggestions more correctly about balancing and stuff like that. It would be very very helpful! I am surprised it not happened already.
They are a bit quieter. I increased their volume compared to others, but I guess they are a still little quieter. I think the SMW music has always been a little on the quiet side anyway, but it would be better to have it match the rest of the music in the game. It's easy to adjust. I can do that when I get the chance.