I purchased this Cosco Traveler Booster Car Seat to replace an older one for my seven year old son. I found it on Wal-Mart's site to store site with free shipping. I was very pleased with the price, in particular. When I first got it, though, I found it was rather cheap. There was some difficulty in assembly. You have to shove one plastic part in the back rest into another piece in the seat. I pushed on it as hard as I could, and it was a while before I could get it to go in.
The soft cloth cover went on much more easily. It looks like a sensible synthetic material in grey and black. I then installed the seat in the car. The seat must be buckled into the car at all times, which means you must re-buckle it after removing the child from the car, which is a pain.
On the bright side, it has cup holders. My son likes the seat very much, and says it's very comfortable. Overall I recommend the seat for anyone who needs an inexpensive car seat for their child.