I installed it once, removed it and then they asked me to take a survey. I decided to take it and at the end they offered me Hotbar Premium for free. It didn't show any ads (the so-called relevant site buttons were still shown though) but I'm not sure if it stopped phoning home. Anyway, it didn't take long for me to uninstall Hotbar Premium either as it cluttered up my system.
In not so related news: I also tried
UCmore once. It is spyware-free as of version 4 and what it does is show relevant sites to the site you're currently visiting (although some of the sites listed probably were sponsored listings). I'd still use it if it weren't for the fact that is only available for IE.
