For 149.99 this phone is a great deal. First up, just to dispel any concerns readers might have in terms of software, it is as bug-free as any Nokia I've ever owned - I have not had a single unexplained freezing of screen in the 2 months I've had it.
It doesn't need a detailed exposee of features, suffice it to say everything you'd expect is there without being as slick in terms of the user interface (e.g. no recent contacts list in an auto-type-ahead dropdown when writing a new sms).
What I really love about this phone though, is the battery life - best in class. Even with 2 days of heavy use (wi-fi, 3G, calls), you'll still have juice left.
If you want something that does the basics as well as you could possibly do them, then this is definitely one to consider.