Haven't had any issues with either of my two 104 cases. The only minor complaint I would have is not really a big deal... but the coating has a bit of tack to it and the lid wants to stick when trying to take it off sometimes. I played at an outdoor festival recently and the little bit of extra heat made it stick pretty bad... had to gently use a screwdriver to get the lid unstuck.
Still having issues with the 208 case. Weekend blown just testing different configurations. Going to contact PGH tomorrow and likely put everything back into the two 104 cases until it gets sorted out.