Just got it and did some basic checks.1st it does have a 2 layer copper cooler and a Decent sized fan that is not super loud, -Good.The unit is advertised as a "10" liter system/tankWell 2 gallons will over fill it and a liter is more volume than a .946 of a liter quart so calling it 8 liter volume would be more accurate - Bad The tank has a back light so the level can be seen clearly if the room isn't to bright - Good. One of the internal coolant lines is marked as "air hose" Probably OK? Looks to have a decently built circuit board and even though the pump itself is plastic it builds good pressure and also runs quietly Good For the price point I think it is a decent deal. Will update this after I put it through it's paces using a 350 amp CK 18 torch powered by a Lincoln TIG rated at 300 amps @ 60% duty cycle welding up some 1/4" and 3/8 aluminum