I really like my Lincoln 185 precision tig. I also have an older Esab DTU300 tig unit that I bought cheap. Built my own cooler for it and used it on 2 or 3 customer jobs and it quit working. Go figure! still need to get it repaired. Personally I think the newer smaller machines are easier to use. They seem to be easier to set up and also have the auto balance and pulser that really helps in the AC mode. Beep