Transmission is the simplest to understand and use! After years of being confused by Bittorent and applications not available for Mac, I found Transmission. THANK YOU! What a GREAT surprise. If you're a creative type, like me who wants to spend time USING her computer, not reading technical books, and want the best and fastest you can get, look no further, Transmission is everything a Mac program should be. Easy to use and works like a charm!