I actually was looking at the century fc-90. Looks great. I was comparing it to the Amico ARC-160D 160 amp stick arc dc welder (dual input) Any thoughts in comparision. Also is it important for any welder to be DC or more important if its a FC or MIG?

https://www.amazon.com/Amico-ARC-160D-Welder-Voltage-Welding/dp/B06WV7JKHJ/ref=sr_1_5?keywords=stick+welder&qid=1551807779&s=gateway&sr=8-5.