I think it's a bit overrated, and like most shows it drags sometimes and is hard to watch for the first few episodes. On the other hand, when it works, it really
works. And like all shows by Whedon, it has superb casting and delightful dialog (except the Chinese swearing thing in this annoys the HELL out of me). It has its weak episodes, but if you can get past the parts that drag, it's a very rewarding series to watch and not that hard to watch even with the weak spots since it's only one season long.