First season isn't all that good, if I remember correctly. You're definitely not alone in thinking it was cheesy and not all that interesting. Towards the last few episodes though, you'll start to see Whedon flex his muscles in the writing area in which he can't be beat: the story arc. Season 2 starts to pick up quite a bit and by season 3, you'll be hooked.
Alright, I'll continue giving it a chance. Thanks, hep!