edit: Just to expand -- I got given a BlackBerry for work purposes and it drove me crazy. Generally terrible user experience, unintuitive, and aesthetically awful. Funnily enough, since the iPhone was my first smartphone, I actually found it difficult transitioning to a physical keyboard. I got too used to be able to button mash and have it auto-correct.
edit: Just to expand -- I got given a BlackBerry for work purposes and it drove me crazy. Generally terrible user experience, unintuitive, and aesthetically awful. Funnily enough, since the iPhone was my first smartphone, I actually found it difficult transitioning to a physical keyboard. I got too used to be able to button mash and have it auto-correct.