I've also bought two machines from them and they were great to work with. One was a NIB that came straight from Stern and they not only took the machine in but made sure everything worked. Something wasn't working right and they hung around for an hour with Stern customer support and got it working (loose wire was the culprit).

They also tracked down a machine I was having trouble finding. They were extremely honest on the condition, took a ton of hi-res pics, and were upfront on the pricing. Obviously paid more for it but the fact they deliver and setup everything is worth some money to me (I hate renting a van and driving 2 hours each way to pickup a machine). They also have a 30-day warranty on their machines which you're not going to get from your average seller.

There is nothing shady about offering someone more money for their product.