I don't know, I like it. Results are very on par with Google's. Interface is cleaner, now that Google has a rating system and a lot of other info/links per result.

Only thing I don't like is that I can only set 50 results per page, whereas with Google and Yahoo I can set 100.

I'm gonna set it as my homepage for a few days. That's the only way I'll be able to give it a try and come up with a judgment.