Well maybe, maybe not. First thing is a spool gun makes your life easier although using the normal mig torch is possible, I did that for many a year.
Mig welding Alu is for thicker stuff, I don't like going under 4mm although I do sometimes do 3mm but below that and I would only do it in an emergency where I don't have the AC Tig.
Some people find it relatively easy, some people just can't get the hang of it.
Get the wire to feed consistently and yes it's fairly easy but the pita with the process is the fact that the wire is so soft it only takes a split second of resistance before your in tangles. Spool guns, push pull systems or even just the correct liners, rollers, tips etc make life easier. It requires a chunk more current than steel to get things to flow. But the actual process it self is still mig welding and it's still a lot easier to get the hang of than tig.
I personallly don't do enough long runs on thick section to justify it so all my Alu is done with tig.
I have a spare MB25 which is rigged for ally and I have no problems with it, as long as you have the Teflon liner, correct ally drive roller, correct ally mig tip, and a short umbilical and set it correctly you should be fine, a spool gun is much easier though.
If you use 1.2mm 5356 wire, it welds quite well on most std migs with a short torch and correct tip, we use only mig on the work we do, it's not pretty and it's ground off on the outside corner joints we do, great for fillet joints on 2mm 1050
I used a standard 240v Migatronic for years, then bought a Cebora synergic inverter with push-pull torch, but it was so unreliable.
I now use Kemppi inverters they very reliable but expensive, but they earn their money.