you'll either love grenades or hate them, and thatll never change.
Personally i dislike them myself, having a really hard time as they need to be fixed, notably the damage indicators, dont tell me im hurting something if im not, and make me waste a bunch of em only to get closer and find out theyre nice n green, ive even "hurt" myself and watched a -200 appear and my hp was fine. its not so bad later when u get demolitions, but still its a workaround for their basic underlying broken-ness.
funny as heck to see a 1550 HP veteran take a whopping 3000+ damage and stand there just fine n dandy.
you should make a thread on most disliked weapons
as ill be sure to post mine, sorry for the off topic..