We bought a Knaus campervan via Wietze and had a fantastic experience covering 11 countries in 6 months. We also bought two bicycles from the local bike shop on a buy and return deal. We were picked up from Amsterdam airport and stayed at Wietze's place where the whole family helped us settle in to our motorhome which they bought for us. After a brilliant 6 months of travelling without incident we returned the van and as advertised got back the agreed price then a lift to the airport to return to Oz.
We would recommend these guys to anyone looking to travel Europe.