I found a millermatic 251 single phase on a local forsale site with spool gun and mig gun with bottle gauges ready to go for 1500 obo

Im pretty new to this and im not sure if single phase is good or not, if anyone can please help me out with an honest opinion on this machine

I will be welding mosly 1/8 inch aluminum and steel with maybe some 1/2 inch here and there

I need input asap please

Thanks in advance to all!