I've stayed at Ashbourne Heights. I managed to pitch my tent on a patch that ended up approximately two inches underwater, on the dubious basis that it was a bit sheltered from the howling wind by a wall.
The rec room was good while it was hammering it down, thobut. And the cleaner gave me a large quantity of paper towel to help dry my stuff in the morning. Facilities seemed decent.
It's literally right off the Tissington Trail. The important thing is not to drag your bike up the steps by the bridge to access it, unaware that if you ride a little further there's easy level access.