The majority of the games available are commercial titles, which aren't exactly legal to download. However, you can also use the client to access a large catalog of totally legal free games, which you can download worry-free.
In the options menu of Download Games for Free, you can configure the same parameters that you would in using any other Torrent client worth its salt. That means you can select the destination of the downloads, the maximum download and upload speed, the port, etc.
Download Games for Free is a useful video game downloading tool, and although it may be used for downloading commercial titles, it's also a great resource to find some of the best free games out there.