Servage are shite. I've been hacked once, they change server configs without warning, their email server (at least the one I've been placed on) rarely works without a glitch, their support is terrible and, it seems, quite willing to not read any tickets you send them before replying, there is substantial downtime, and they are absolutely, completely and utterly overselling.
Just my opinion. I wrote a post about Servage some months ago in reply to a question from LazyHippy, and I wasn't thrilled about them then. It's only gone downhill from there.
But... yes, they do allow Adult sites.