I have used them to import mine.
Be prepared for a long wait (3 months) and watch out for "extra's". However that said - it did turn up, it was in good condition (4.5) and I'm reasonably happy.
It is very a stressful process as you don't get much contact with the staff and its a big trust thing to pay alot of money up front to the auction house for the car.
If you take the risk and you will save money, but its not for the faint hearted....