if your asking specifically about the fronius transteel 2200 , actually its a bit cheaper than its direct competition from lincoln (power mig 210mp) and miller (multimatic 215). the lincoln aluminum package with spool gun is $2400. miller doesnt seem to have a alumin package but the spool gun is $650 , machine is $2000. fronius is $2178, plus about $100 for the necessary small parts to run aluminum wire , remember it welds aluminum with the supplied gun. when you really dig into every little detail about each machine , i feel fronius easily pulls out front of all other machines.
lincoln and miller give you 10' gun and ground leads . fronius is 13'.
fronius has ip23 protection. lincoln only ip21c. miller i couldnt determine if it has any ip protection.
duty cycle , fronius wins hands down against miller and lincoln. also i may add , lincoln is not very transparent in their duty cycle info but what little info they do publish , fronius easily wins.
the mig guns, i havent seen the lincoln so i cant speak to it . millers gun is fine. has a nice nimble feel. fronius gun is a beast. seems more industrial, rather than homeowner. perhaps that could be good or bad. might be tricky getting into tight spots , otherwise i see zero disadvantage.
ground clamp , fronius is cast brass. miller appears to be stamped steel ,albeit with a copper strap connecting the jaws. not a bad clamp , but still a step behind a solid brass clamp. lincolns clamp im not sure of , probably similar to Miller's.
wire feed rate , miller 60-600ipm. fronius 59-708ipm. lincoln 50-500ipm.
fronius has a synergic weld mode. neither miller or lincoln have this mode that i could find.
ill be honest , i simply dont have the time to go into and type every tiny detail / feature / function / parameter, between these machines , other wise i would be typing all night and half of tomorow