Great unit - I have had two over the years and they are the only option on the market pretty much for casement windows. The packaging is horrendous though - cheap styrofoam on a massive metal unit?! always arrives damaged on the side and the front plastic panel cracked. The plastic is getting cheaper and thinner over the years too - front panel is barely holding up on these new units. So, functionally great - packaging and materials are really bad. But then again - you dont have a choice with casement windows.