Despite the fact that's running Symbian (Belle) it's a good phone. Anno 2012 I can't recommend it, but when you have no real big problems with the OS you can consider buying one. Especially when you live in Europe the offline navigation is very handy because of the high roaming charges.
You can't use it as a "real" smartphone (like iOs or Android) but in combination with an iPad you have the best of both worlds. A phone with a battery that will lasts over three days of heavy usage with het full hardware keyboard and very good audio quality and a tablet with the apps that you need and for web browsing.

Design 8: The phone is really sturdy build with a metal body and Gorilla Glass

Display 7: Really good display (326ppi) but it's quite small (2.4"), would love to see same size as the Bold 9900 (2.8")

Camera 6: 8 mexapixel, but no autofocus (EDOF)

Reception/Call quality 9: No complaints about it

Performance 4: 680 MHz CPU isn't a powerhouse

Software 5: It's Symbian (Belle). It's better than previous versions, but you can't compare it with an iPhone or Google's Android. The integration of social networks is a joke.

Battery life 9: Very good, especially when you compare it with my Galaxy S

Ecosystem 4: You have basic apps like Nokia's navigation, and Quickoffice. But the combination of the announcement that Nokia will stop selling Symbian powered phones last year and the fact that the e6 has a different screen resolution than the other Symbian phones makes that there are basically no apps available