Anyone not living under a rock these days usually goes to websites for hotels to stay in, but sometimes it's not enough to know that your hotel has a certain amount of stars before you go — don't you want to know about your room?
Trip Kick [1] is the site that will tell you what rooms or floors to avoid for noise, traffic, or smoking, and will advise you which rooms are what you want, like corners with more space, so you can maximize your stay anywhere.
Trust me, you don't want to spend hundreds in a fancy hotel just to be on the ground floor facing some bodega's neon lights.