If you're on the 'bus, you probably aren't staying at Dibden at all but rather at Chilworth Manor. Dibden is the head office for CTC and Boeing training still happens there but I believe all the airbus work now happens on the other side of town at CTC's Nursling sim centre (which is an enormous great boring looking building in the middle of a bunch of other great boring buildings in an industrial estate in Southampton).
Good news is that Chilworth Manor is absolutely amazing, big old country house, the food is just unbelieveable, its all mad gourmet stuff like quails eggs and truffles and scallops etc etc and included in the cost of the course. The uniform girls turned up on week 3 of the course to measure us up for our smart easy uniforms and every single person there had gained a trouser size

I would rather they knocked a couple of thousand off the cost of the rating and I slept in the boot of the car and ate tesco value baked beans but that doesn't seem to be an option unfortunately, so enjoy it while you can because you're paying for it.
No gym on site but some nice running tracks and free mountain bikes available to borrow.
No internet at the hotel but it's free down at CTC nursling.
Everyone stays there pretty much non stop on the groundschool. There might be an idle few days or up to a week between groundschool end and sim start, and if there is they will probably kick you out of the hotel and expect you to go home for those days.
www.chilworth-manor.co.uk