I hate to say details in open.
Too many failures too early. Inverters are cheap and similar to those from overseas.
The quality is in a huge decline while the price and marketing keep the brand current.
If there is 5 identical machines, they will all weld very different. I would hate to get a "bad" one as a consumer and be stuck with it, when it's a lottery to get a "good" one.
The "good" ones are very good. But I would hate to try to chance it and buy a good one as a single purchase consumer, when 20% are the "good" ones.
If you buy blue, you do get preferential service before other brands at a repair facility. So that's good.
Research into inverter life span and price and you'll see that machine are build to last shorter life cycles, yet price is still increasing.
A lot of inverters on the market have a 10yr expected life time. A lot of that has to do with cheap solder complying with ROHS.
Look for inverters out of Europe to bring more money bc they are higher quality.
Why should you spend 3-5x to get a machine that has similar inverter, but has nice blue paint on the case.
If I were buying right now, it would be esab, lincoln, or everlast.
Everlast, longevity, lotos, Eastwood, are all out of same plant in China. Buy a container full and spec out your own options, logo, color scheme etc....
if buying that lineup, get the one with friendliest staff in US, best warranty, and potentially buy two, so you can ship one back to be fixed and still weld with the other.
Short version, blue welders are junk that still bring top price.
If I didn't have access to 10 identical machines and have used them since day 1, as well as talk to others about my personal experience,
I wouldn't have believed my words either.
If I had to have an AC/DC pulse tig right now, it would be everlast.
If I had to have a MP welder right now, it would be esab no doubt.
Once you start comparing and welding with the new round of (mig) machines that read arc voltage and vary output to keep output current constant despite stick out and gun angle changes, esab is king.
For a home hobbyist that does cage/bumper and out of position work without needing 80-100% duty cycle,
These machines make welding that stuff much more fun, and gets a way better result for those not welding everyday.
That's the value, you can pick one up, dial it in following instructions, and the machine helps make better welds.