Paul,
The Bosch is a good sander when it works. I bought one in May. With only very light duty it's now stopped working twice. The first time the variable switch was replaced (repairman said he keeps them in stock - not a good sign) and I'm not sure what's wrong this time. I haven't had a chance to take it in to be repaired. I've seen posts of others who have had the switches go out as well.