To elaborate a little further on the technical support,you might notice that no Everlast manual that I have seen includes a complete circuit diagram. This means that, for the life of the machine you are tied to a company that has , when I last checked, just 2 authorized repair facilities in the US. and, unless you live close to either one, under the "Warranty", you have to pay shipping and insurance costs to either one. The "Warranty" is void if anyone else opens the case. Also, the "repair or replace" decision, (and any other decision!), is made entirely at the other end the shipping route, with no recourse if you disagree. Since even inverters are not light=weight, S&I costs can often approach the cost of the machine. Another replacement may also be "out of stock", and you may have to wait months for one to arrive on a slow boat that has to wait until a container for a supplier fills, and ... etc.
Esab, for example, has dealer stores and repair facilities, in almost every major city in the US, as well as a world-wide support network, and a warranty that will (and, has, for me) pay for shipping both ways for a defect, This is worth a few hundred extra dollars to me. And almost all the majors include a circuit diagram in their manuals, so that your machine still has life after the warranty expires.