I downloaded their demo a while back and could not get it to work properly no matter how much I tried. I sent a message to their tech support politely outlining my problems and they answered me quickly. They basically called me an idiot and told me that if I wanted something better I should spend the money and buy Realflight. I did and have been happy ever since. I will never give a good recommendation for a company that treats me like that and I will warn anyone I can about them. That was my experience. A woman scorned and all that.