I've used an iPhone for 4 years. I like it as much as anyone likes an iPhone, but I'm ready to try out something else for a while. I've read a lot about people who have moved to Android - some prefer it, some don't - but what I'm really interested in learning more about is Windows Phone. The Lumia series looks pretty impressive, as does the most recent WP update (8.1).

Has anyone had a good, bad or indifferent experience with a Windows Phone?