Uhmmm.. my MIL is a nice lady. I feel much closer to SMIL though. FIL is kind, SFIL is inconsequential but unoffensive. No real animosity toward anyone in the family, except maybe SILs and that's just more general dislike than active conflict. Nanna-In-Law is awesome and just like another grandma to me.
Husband loves his ILs though. They spoil him with gifts and cards, cheer him on in any endeavors, dad is currently filming a youtube series of guitar lessons for him lol. They've even supported him through marital issues between us, considering him a son for life due to being kiddo's father (obviously they support me more but still!)