I just switched from an iPhone. I don't really notice any real difference software wise - it does everything I used to do on my iPhone.
In terms of the hardware, again I am very happy. The Reno13 A is very pleasant to use. I cannot find any faults to complain about.
The price is so much better than the alternatives - especially when compared to Apple phones. I was also looking at buying a Sharp Aquos, but this was half the price and works like a dream. A good choice.
I am not a gamer or a heavy multi-task user. The screen is very nice for multi media. I have not pushed the phone to it's limit (yet). For me, this phone is perfect.