I've ordered some plants from them once before, and they were fine.
but, I think I got my blueberry plant from them and in 2 years have never had a single blueberry from it. I posted on here about it and someone pointed me in the direction of the dorset blueberry company who were really helpful. I would advise against buying 'Top Hat' – this is the one I have, and the dorset blueberry company don't stock it because it's "notoriously difficult to grow".