I have a Miller Synchrowave 180SD that I have enjoyed for the last couple of years. It probably has less than 10 hours run time, and has never been outdoors.
I kinda want to upgrade to the Miller Dynasty 200DX, but I am in no hurry. This is not a really urgent priority.
If you are in the area, and are interested in buying a nice 180SD, drop me an email: spencer313 at yahoo.com
Best,
Spencer