Over the years there were a lot of shows that sometimes even turned into my absolute favorites that I wouldn’t have touched based on the synopsis alone. March Comes In Like a Lion, Ore Monagatari!!, Non Non Biyori, Akebi’s Sailor Uniform, Welcome to the N.H.K., Silver Spoon, etc… I might have picked up a few of them anyway based on word of mouth afterwards, but if I were to just go by synapsis I would just skip everything that isn’t fantasy.