We really like what we've seen from the Nokia Lumia 620 so far. The smartphone is decently quick, has a nice youthful styling and arguably gives the best bang for your buck in the Microsoft camp. It's more than certain that the flashy paint jobs will resonate with a younger demographic, but it's exactly the target audience Nokia and Microsoft would want to get on board.
By the way, if Nokia gave the Lumia 620 a slightly more serious styling, it would have probably killed the HTC 8S. Instead, the Finns made it possible for the two smartphones to co-exist, thus giving the platform as a whole a better shot at growth.
The only aspect of the Lumia 620's performance about which we still need to be convinced is battery life. The tiny battery has good ratings on paper, but only after properly testing a retail unit will we know if it's any good in real life. It looks like Nokia will be selling the Lumia 620 as the phone to be seen with. But reasonably fast performance, proper battery backup and a solid software package may as well make it the affordable WP8 smartphone to own.

blink182: Hmm...let's see what next year holds. Nothing is stopping me from getting my N7100 though. THE BEAST!