Its very good IMO (missus has one). Screen is lovely, touch works well, browsing is good, etc etc. I was annoyed at not being able to get rid of the Orange preinstalled stuff (although I just changed the homepage of their browser and removed their app store shortcut for the proper android one) and I had to work out how to stop it adding every single facebook contact to the address book, but apart from those niggles its spot on.
Having 5 homescreens is good too. She has it setup with 1) web bookmarks, 2) weather, 3) home (with shortcuts to internet, mail, etc), 4) google searchbar [with voice activated searches!

] and camera/video shortcuts, and 5) Facebook.
She has to charge it everyday but she's on it all the time and has WiFi constantly on.