I bought c300 in august2003, so far it is functioning properly:-), though the sound reception is not as clear as NOKIA, it has quite a lot of features for its price range
its is famous for backlit display, which comes in three colours-cool blue, white , dirty yellow ( yes, very dirty, I am sure no one would like it), The phone is quite handy and looks very compact, though with the cover the looks get overshadowed, the main plus point is the battery, it has very long life, I charge it once every 3-4 days( much longer than nokia).
it has WAP.
another feature is the shortcuts menu, where u can store all the most accessed functions can be stored ( I personally found it very useful)and also has the feature of storing addresses in phone book as well as SIM, (found it handy when I changed my network service provider) I just transferred all the phone numbers from SIM to Phone book
overall its worth it since it is ony INR 4500.
definitely better than nokia 3315