I used many clients: Azureus, yABC and lately g3torrent an then Rufus. And I thought Rufus is the best for me. And then came utorrent. Which has a very similar interface to Rufus/g3torrent, which I really like. But what convinced me of changing my client was its low CPU and RAM usage. And with every new version it becomes more and more flawless. Thank you guys for programming this small client of perfection.