I've been using a clarke 150TE turbo for nearly 15 years, rebuilt several cars, lorries etc. It goes low enough and high enough for most things. The wire feed can be temperamental though, one day it will work faultlessly all day, but occasionally, it's a total bitch. Teflon liner has helped, and always keep the wire indoors when not used for long periods, slightly rusty wire will cause feed problems. I've found CO2/argon mix gives best weld on thin stuff.