its strongly built and packs a punch. with no outer dead layers this kills the first time around. i dont know what the deal is with no screens on windows, in america bugs generally stay outside. the executioner takes care of anything that makes its way into the house.
i thought it may be a bit advanced for my 3 1/2 year old but with very little instruction on a couple of the mini games he has been mastering them. it does keep him up at night, requiring us to take it away however the skills hes learning are definitely showing.
this is the second ive purchased and i love it. the first ran 24/7 for nearly 2 years, the motors finally stated to fail with one requiring a jump start to get going. i highly recommend this cooler if your notebook sits on a hard surface and requires additional cooling due to heavy hardware usage (eg. encoding, video editing)