IME they are wonderful, affectionate, strikingly intelligent, fun, chatty, huge, beautiful & fiercely protective of their humans & will take on anything in the process :)
I've been lucky enough to have been owned by 2:) - both had beautiful lush fur, but neither ever needed grooming until much older, they always kept their own fur in good nick, unlike my chinchilla persian who had to be brushed daily of he was a big matted mess, generally very easy cats to keep.
my last old girl lived to be over 20 & was enormous, along with my moggy tom, she actually saw off burglars & fought to protect me clamping herself on the head of the guy climbing through my window, ripping him to shreds - another time she also attacked a neighbours dog who tried to attack me - my other MC also attacked a man who got a bit aggressive with my mother whilst she was looking after her.
They are playful in a different way, not so much toys & chasing things, as playing tricks & being magpies, I've found stashes of money behind pipes & had one knock on the door & hide - this went on for months & left us very puzzled as to who was playing tricks, until I came home & caught her stretching over from the fence & banging the letterbox & then jumping down behind the fence to hide:) both loved TV, both were a bit too good at hunting & bringing gifts - for example 3 squirrels in bits under my bed wasn't uncommon.
I agree with gum problems too, though I had no clue that is a breed thing, but both of mine suffered in later life.
Still miss my old Polly & its been 3 years since she died at almost 21, that was despite being epileptic too.
I love the 2 morgues I now have, but very envious of your new MCs - enjoy :)