Can't give a full report as I am still comparing it to my other phones but I do like it very much. It generally runs smooth, works well as a computer, haven't tried the phone side so can't comment on that.
I have tried it with several launchers and all run well, however I have noticed the battery draining quicker than the Galaxy S3, Sony Xperia S or the HTC One X. This I am currently investigating, its probably caused by a App which isn't on the other phones.
Haven't tried the camera out properly but low light shots aren't as good as the HTC One X which produces outstanding photos in a dark room or overcast day.
During a day of reading Android Forums, checking Email, taking a few photos, web browsing and setting up different launchers the battery was down to 45% at 10.00 at night, having been on since 7.00 in the morning. Should also mention that I have lots of notifications pooing up all day from the forums and the apps I use to view them.
I would recommend it as a main phone as it operates and produces results very similar to the Galaxy S3 which is my favourite phone probably as it was my first top end phone.
Hope this helps.