520 f11 is a cracking motor,had mine 18 months, just be carefully with the media screen. It's so fragile. You touch it,you scratch it. Make your first job to cover it with a non reflective iPad cover. It pops out in a couple of minutes. They've a 535 F11 at Worcester with 9k of the screen price but that figure can a also be knocked off a 530 with persuasion.