I have the HTQ20, which is basically the same, but with different speakers (not on stands).
So far, I am very happy with it.
There is USB input-unfortunately most of the MP3 players that will work with it are also Samsung, but I was able to pick up one with 2GB of memory on e-bay for €55 all in. You can then use the DVD remote to manage the content on the MP3 player.
There is also a wireless option, where you can buy a SWA-3000 wireless kit and thus you don't have to plug the rear speakers directly into the DVD player.
I paid around €230 for mine in Dixons. The wireless kit wasn't cheap-around €200 delivered from the UK.