Really great phone
This isn't my phone, it was bought for my son who likes his Xbox and so fancied the tie in with Microsoft and Windows. I am on my second Android phone now and have to say that I like the way that Windows phone stacks up against Android. Both my wife and son use Windows phone so although I haven't lived with the OS personally on a long term basis I have seen enough of it that I would have no issues with converting to it.
Regarding the phone itself, it's a Nokia and whatever you might think about them they have always built great hardware (I should know I have had enough of them over the years and still have a Nokia C5 as my company phone) the Lumia 710 is a good looking phone and solidly put together. Evertthing works as you would expect and the spec. is remarkable for the price.
So as mentioned, the OS is nice looking, works well and compares favourably with Android. Against Apple I have less experience although to be honest compared to the Ipod touch the Lumia with Windows looks and maybe even feels better. Integration is great and although the feeds in one place is pretty cool.
Hardware looks good and all works fine as expected, with a decent camera as far as phones go (which isn't far in my opinion compared to a decent camera) and a music and video player that works well.
Integration with Xbox is a novelty that works as far as it goes but I am not an Xbox gamer so it doesn't do much for me.
Battery life is better than my Huawei Andoid but still needs a charge every couple of days to be honest. I guess this is always a tricky point as if you spend a coupl eof hours talking, plus a couple of hours using gps plus use the music and video player a lot then the battery is going to suffer.
A final great feature is Nokia maps which doesn't need a data connection and is therefore great whilst on holiday abroad as long as you preload the country map before setting off. I know this works for Germany at least as I have just got back and we used it to save a fortune on roaming charges.
For a decent spec. smartphone you could do a lot worse.