I've just got one and it's a good mig I got the 250amp mig tig and stick I've welded car body thickness and 6mm plate with no problems plus it's easily moved about on a trolley I made
Just bought from R-Tech. Cocked up on machine spec as it was way too much for the supply I had to the 'man room' (or workshop). They swapped the welder, so within 6 days I had the wrong one delivered, picked up, taken back, checked, refunded and the right one delivered. Very tidy machine and a lot better made than my old SIP welder.