Lumia is the best ever phone I have used till date. I have used almost 10 different models of phones and Lumia has stood far in the front when it compares to all other models be it Price or Performance.
Lumia 710 is a Windows 7 phone and I bought it thinking it would be upgraded. I did get an upgrade of 7.5(Mango) and still waiting for 7.8 though it started rolled out worldwide back in Feb 2013.
The pricing of this phone was quite good but not compromising on the quality. It has a tremendous 1.4Ghz speed and I could cruise through various websites at the same time. I was very much hopeful of getting Win 8 but Nokia said it is not possible which is a disaster.
No front cam/Memory Card Slot were the other disadvantages and one has to be satisfied with paltry 8GB in-space. However the over all performance, Live Tiles, Ease of Use keeps it distinctively ahead of it’s peers.