this welder any good?

^^I don't think this is the same unit^^

I think this "Deltaweld 300" is likely the more modern replacement,

https://www.millerwelds.com/-/media/f6b769bd0dc242538222f75bb6cf128b.pdf

EDIT found it

https://manualzz.com/doc/51904384/miller-mc-300vs-user-manual

SHIPPING WEIGHT 515 lbs !!!!!!! LOL

Bear in mind as big and heavy as this is, it is MIG ONLY. No stick, no TIG, and no AC