I've always been fascinated with the game and have tried playing it a few times but I just couldn't get into it, the interface was just impossible for me to navigate and the macro system confused me. I loved the idea of the game though. I heard so much about it from friends who played it for years and I just couldn't connect with it.
Mind, if it were free I'd definitely give it a try. I'm just enjoying FFXIV so much though that XI would be... a major downgrade in game quality now though...