Bought the evaCHILL as a birthday present to my partner and he is really chuffed with it. He says the only criticism he has is that unless he keeps the unit level then water can leak out, but other than that it's excellent for the purpose. We took it to a camping trip and on the sunniest day when we sat around in camping chairs he just plugged the evaCHILL into a power bank and placed it on his lap to keep himself cool. At home the unit sits on his desk and is plugged directly into a socket. Very pleased and would highly recommend it to others as well.