Welcome to the forum. You made a good choice, about the only thing that machine won't do is tig weld aluminum. You wii probably never need more welder than the 211. It has only been out for about 5-6 weeks so there have not been a lot of users on the site with them. I have the earlier MTS250S that does not have some of the features that your 211 has. you should be all set with your other equipment.
Miller 302 gas drive
millermatic 200 mig
miller spoolmatic 3 spool gun with 100ft ext.
2014 Everlast PP60S plasma
thermal arc 250 GTS inverter
2016 Everlast 250EX
miller tig cooler
2015 Everlast MTS250S
Miller 30A spool Gun
Miller xtreme 12VS wire feeder
Linde CM 85 shape cutter