Indeed. While there's always some one-star reviews no matter how good the thing being reviewed might be, the best guide is just to read them and see whether they sound like rational complaints from sensible people. If the one-star reviews say things like "the checkin girl rolled her eyes at us the third time we asked for our room to be changed to one with a better view" then it's probably an alright hotel. If they say "filthy, noisy, unsanitary" then I'm probably not gonna stay there.