We used this when we'd take our kids to the bike path, but now they've grown and it gathers dust, which I swabbed off with water and a brush today.
It carries 4 bikes. It also has a hitch extender ($24 at Harbor Freight), which is nice because it keeps the bikes further away from your car.
The carrier itself can be folded down if you've not got bikes with you at the moment, and the vertical post can be laid down to open the tailgate or hatchback. I put some additional reflective tape on the back (safety first, you know).
New ones sell for $100 on Amazon, so I think this is a pretty fair price, and we've got a lot of storage space where it can stay until it sells. We live near Lewisburg.