As Lawrence mentioned no water cooler included....if you are going to work AL you will want a water cooled torch....  You can get by with just making up some simple plumbing and using the building water supply.....this is not a lot of water just a light (weak) stream out of a 1/4" hose.  I have seen car radiators, box fans and small electric pumps built and used that cost far less then the Miller cooling unit(or anyone else's) equivalent that work just as well or better.

In my experience all the syncrowave machines have good solid performance and reliability of millers other shop power supplies.  The balance control feature with squarewave makes for a treat when welding aluminum in comparison to a standard sine wave machine.  The arc start features are also a big big plus, preflow gas, softstart etc, mainly because they actually work as advertised.  For light all around TIG  its an excellent choice.  They are not my favorite when it comes to stick but they work fine and are competent.   I would assume they will run wire with the same competence but I never used them for a mig powersource. 

If its at the price you want and it has the features you need....you won't be disappointed its a good machine.

Tommy