I can't say that I necessarily do or don't like MIL. DH and I have been together 8 years and I've seen them 3 times (they live on the East Coast, we went there twice, they came here once for our wedding). I don't talk to them on the phone, and have only had awkward/impersonal convos in person.
DH doesn't have any conflict with them (nor do I), they just don't show much interest in being more involved in our lives. It makes me sad, becuase I know he wishes they cared more about us (like they do SIL/BIL).
Part of me hopes that us having kids will change their involvement, but I doubt it. I guess I'd rather it be like this than have some crazy pants MIL like some of you do.
ETA: Holy long response, sorry!