Experiences differ but I've found them to be a decent group overall from my limited interactions.
Closed my accounts across the group. Emails were initially well dealt with from one brand but ignored by another, probably due to the linked CS they have to hand.
After a phone call I managed to shut the lot down from one site, which was pretty handy. How this translates to SE I'm not sure but I guess having the telephonic communication means available is sometimes still the most effective method in getting things done.
But as an overall group I'd cite them far from shabby. One of the better outfits I've encountered in my slotting adventures