I've been using one for the past couple of years that was a given to me by a friend. He installed it new in a '95, and used it for about 7 years before I got it. I replaced the wick in the burner when I got it, and it's had one glow plug replaced and one timer. It works great, and I wouldn't be without it after having one. I also purchased one for my other truck that I have sitting in the basement. I had room to install it off of a mount on the passenger side battery. It's a tight fit, but it worked out great and keeps the unit out of the weather. I was told (by a Webasto saleswoman) that they have a large number of employees that work in the U. S. , and that they are trying to increase their presence here. There was a person selling a few new TSL 17's on Ebay a while back for $450 N. I. B. which is a steal. If you have any questions, shoot me a PM.