I found them last year while booking a trip to Montreal for the weekend of the Formula 1 Grand Prix. Having found no luck finding a room, they seemingly located a lot that other sites didn't. I booked, and paid, but remained skeptical. So, I called the hotel in question and they not only had no record of my reservation, but they had that weekend booked for months. So, I had to deal with cancelling the transaction through my credit card co.
Fast forward to this year, while looking for rooms in France. I went to Expedia and found a room. Upon checking out, I noticed that it instructed me to go to getaroom.com if I wanted to cancel. That raised a red flag and I promptly emailed the hotel in France. As expected, they didn't have my reservation and they, too, were totally booked.
Apparently, getaroom.com has zero relationship with these places, takes your money, with intent on booking manually. If the place is full, they just keep your money and you can't recover it in the event you show up and the hotel doesn't have your reservation and it's after their cancellation policy.
These people are frauds.