Nokia has very convinced me with the Lumia series. The 620 I liked especially because it gives a full smart phone for the extremely low price. Also you have to worry that the price will change something about the quality of the hardware or software. The Lumia 620 is very well made and offers easy access to the "inside". The mechanical buttons are very well made and can be even after a long time still very good use. The operating system (OS) from Microsoft has me very confident and, thanks to the "Content before Chrome" policy, an extremely clean interface. What is with other manufacturers often criticized Microsoft has solved at this point well. For testing purposes, I have passed on the phone in the relationship and watched as beginners with the operating system handle. The reaction that surprised me most was that a member of my family has decided to newly purchased Samsung Galaxy S4 to swap the against a Lumia. This decision was based solely on the structure of the user interface.
Finally remains to say that I would recommend this any Smartphone, seeking a discount and / or an easy-to-use smartphone.