I'm from the Nokia 3109 (which now has my grandmother) switched to the Nokia 6300i.
The build quality of the 6300i is very good. No creaking, no wiggling battery cover and a trivalent appearance obtained by using the provided desktop charger (only invite, not Syncronisation possible!) Is supported.
Commissioning (transmission of phone book, ringtones, and music dubbing) is very easy through Bluetooth or a (not included in delivery) Mini USB cable.
The display is easy to read and beautiful "big". The keyboard is good. The pressure point could be a bit better. The voice dialing works (after training) also satisfactory.
The reception is good to very good and the voice quality is very good (E-Plus).
The surfing via WLAN worked at home right away. Where no one can really talk about surfing in such a small display actually. But quite to use for downloading tones etc. on the Internet.
The biggest point of criticism is the battery. Since I telephone much and also hear music, he is quickly empty and the phone needs to return to his beautiful desktop charger. The battery is many light after prolonged use (only 2 times have loaded) even better.
Very good value for money! Strong buy recommendation!