Yeah I don't know about overall quality, but here's my 2c.
Had a 180amp Chinese inverter mig, used mostly for welding gal cattle rail, building cattle yards. Had it 10yrs, never failed to work, had a few wire feed issues, but probably more wire than welder.
Got sick of carting it between properties and had a good year with cattle prices, so I lashed out and bought a 200amp Kemppi, made in Finland, supposed to be the cats meow.
Half the size and weight, welds beautifully, but 12 mths in, it died, but intermittent.
Took it back under warranty, they couldn't find anything wrong with it, 6hrs back to my half built yards, won't work again, got video.
Back to dealer, motherboard replaced this time.
Haven't really used much since, but hope it's fixed.
Did I get one of the few well built Chinese ones and one of the few bad built flash ones?
Don't know, but the Kemppi cost nearly 4x the Chinese one.
Getting a bit off topic, sorry Dave.