I thought NextGen was great! Their website has a gigantic database that's really easy to use and pretty extensive. I was looking for a place for me and my 2 roommates in Cambridge and found over a dozen matches just from that preliminary search, all well within our price range. The agent who contacted us was friendly and took ample time to help us find exactly what we were looking for. In less than a week we found the perfect place! Definitely check them out!!