I diliked that they lost the great style they had going in Season 1. It seemed more like a spy show then - cool devices, smart bad guys, the innocents weren't half as annoying...and the guys looked so, so good.
I mourned that 4th season got chopped before the show got its momentum back.
I thought it sucked that they tried to make Illya into what they thought we wanted in Seasons 2-4.
and I disliked that there wasn't a Season 5...or 6...or 7...
So, what bugs you about the show...?