Not liking his friends (and family) would be a huge deal-breaker. Birds of a feather, apple from tree - all that. Luckily, I LOVE my in-laws and they love me. My huband's the one with the bat-shit crazy mother-in-law. I'm just glad I grew up spending most of my time with my dad's side of the family while my mom & dad ran the family business.
Sidenote: I remember one time getting off the phone with my mother and yelling that she was crazy. My husband was appalled, you don't do that in his culture, and chastised me for talking bad about her. However, after his first time meeting her, he looks at me and says, "Wow, your mom is crazy.". Told ya so.