Product review (4 stars): don't waste your money buying a 5
Arrived w/ slight cosmetic damage.  Have run about 5 kegs through it and here's the skinny.  Thermostat should be set lower at the factory (you may have to do some aftermarket adjusting...google it).  The 2.5 co2 cylinder is more than adequate...don't waste your money buying a 5.  You won't be able to set the co2 at recommended pressure...keep it low...at about 4 and no more than 6.  Watch the online video before you try to assemble and use it...it will save you some time and heart ache.  This is a great starter for a casual user at a fair price.