My quick thoughts on the book: they are a vanilla book with a good player bonus. They don't offer many derivatives where they will lose, and they generally keep their lines in-market. They take some minor leans, and professional players will be able to make plenty of breakeven bets to meet rollover, but there was no candy when I was there. This book is better run than most newer books.
Good to hear that you were paid. I have been playing there since late 2011, and I have been happy with them. I have always been paid and never had a problem with any delays.