“Easy to convert to gas, works perfectly straight out of the box. No problem at all. Everything you need to get started right away for gassless. Included wires work well. Makes really good welds, has good control. Only con would be that when using gas there is no 2 stage button, meaning you have to run some wire out to purge the gas through to the nozzle first. Though I mainly use this gassless anyway. Used nearly the whole spool of flux core wire and had no hiccups with the machine. Very fast delivery too from here.”