One thing I have always hated about downloading free stuff is when the downloads don't work. I've gotten involved in a long-standing argument with people "at another web site," who insisted that the problem was with my computer, even the version of Internet Explorer that I use. At the time I worked as a Technical Support Engineer for MSN, and I knew their claims were absolute bull-tickey. But I gave into them anyway, and went to great efforts to try and get a different version of Internet Explorer. I even installed other browsers. The end result was the same. I couldn't get the downloads in question. Then out of desperation I tried my wife's computer and got the downloads. Then it appeared I could download from mine. In the end it didn't matter which computer or browser I used, the results were hap-hazard. Later the person in question admitted he had been dumped by his free web host for excessive bandwidth. The web host had severely crippled his effectiveness before that event. Now I don't let anyone tell me that it's my fault. I know better. As for free vs commercial: I would hope that Renderosity tests this stuff at least as well as DAZ before it is sold. If they don't, then I'd hesitate to buy anything till I've asked others if they've bought it, and how it works.