Except for a few things, namely that Google products are relatively inexpensive, unobtrusive, well written, high performance applications. I mean Windows Live Search is so remarkably poor compared to Google Desktop it's laughably tragic. Since it seems obvious people are only going to accept monopolistic software giants as market leaders, of the two evils the software monopolist who writes software competently, is the better choice.
I know, i was just being 'predictive' :). Google are nowhere near the corporate monolith that MS is, but i believe it has the potential to be the next big "fingers in ALL the pies" company at its current trend of success. They do write great software and products so i reckon the browsers definitely worth a look.