-XoloX gives me better download speeds, than for example Gnotella, which I mostly use. This came as a bit of a surprise. I like it, since I use DSL. I keep seeing a lot of speeds up to 15-20Kbps with XoloX, when I normally see with other ptop-clients speeds of 4-10Kbps. The ability to download the same file from numerous servers is clearly the key to fast downloads.
-XoloX seems to be pretty reliable; it doesn't crash down much, which is a must if a ptop client wishes to become popular.
-I don't like XoloX's colors: using red as font color is just distastefull, please change it to some more neutral, like blue, black, dark grey, so it looks more professional and doesn't annoy the user.
-I found out, that if my hard disk-space gets full, XoloX simply announces: memory error, or something like that, and interrupts all downloads - I had to restart XoloX to resume them again. XoloX should automatically resume those downloads, as more hard disk-space is available.
-I have to give credit for the easy installing of XoloX - it went really fast, and didn't ask me to install all kinds of addware I really don't want to use anyway.
-The idea, that "the more and faster you upload, the more and faster you can download", is in practise great.
-XoloX hasn't freezed down at all, I really like this.