The seats are pretty tightly packed but it's fine for the sub 1 hr flight. Wouldn't want to go to Egypt on one though!
Do they still have the ex-GB Airways A320s for the longer routes? When I've been to RAK, it's been on one of those, and it's not at all unpleasant.
Mind you, they were running LTN-ATH well before they took over GB Airways.
They can go over the top on some of the mid-haul services, though, like Israel. The service is terribly Haifa-Luton.