The N9 has its own strengths and weaknesses. I, for one, don't use it so much except for messages, some WiFi and 3G, and mostly music, so it can actually last me 1 to 1 and a half days at most.

Though my OCD kicks in whenever I bump it (I like my N9 naked). So far, there's been a few scratches. But I just remind myself that that's normal.