Hi all - does anyone have an Ikea Beddinge sofa bed?

Is it comfortable to sleep on? Is it ok for sitting on? I'm looking to replace a sad old sofa bed in my study/spare room. It needs to be comfy for sleeping (guests) but less so for sitting because we only use it for short periods.

And now for the technical questions: how far does the base have to be away from the wall in order for you to be able to open the bed fully without moving the base at all? Is it hard to put up/down? And does the cover stay on ok?