Got mine as a free upgrade from O2.
Don't really like it. Thought I'd give SE a chance as I've used Nokia phones for the past 7 years, and now I know why I never changed before.
I find it a chore to use, doesn't have simpleness of the past Nokia's I've had. I'm too used to having 0 as the space key when texting, or holding down * to get the symbol menu. Or even pressing the 'End call' key to get back to the main screen...simple features I miss when using the 810i.
Shame really, as it is a nice phone. Apart from the odd squeak from the buttons.
Off it goes back to O2, and the hunt for a nice phone continues.