hi madgirl
oooh my name in a thread title!
you must have already seen this? which is why you're asking me?
"if ds is happy then i am too" - that sums it up for us too and why we did enjoy the holiday even despite the relative lack of adult "luxury".
but we got a brochure/newsletter thing from them the other day and they are tarting up the rooms and the restaurant, which i suppose were the areas which we most noticed as needing a bit of a lift.
actually, getting the stuff from them reminded us what a beautiful part of the world it is, and we're quite tempted to go back!
to answer your questions, imo, it's not cheap, but not too expensive for what you get (e.g. compare the cost to somewhere like Moonfleet Manor or Woolley Grange - certainly better value than the latter).
i think it would be beautiful in that part of the world in may - it really is in a gorgeous area.
in terms of whether it's grim for adults. well, "grim" is perhaps a little too harsh. i certainly wouldn't go there for an adult holiday or romantic break.
if you set your expectations that it is a hotel for kids where they let adults stay perhaps you wouldn't be disappointed?
sorry, i haven't been to sands or centerparcs.
hth and if you have any other questions, please feel free to ask.