We had a great stay at Georgia's place in Derby. The property was very clean & well set out. The house had everything we needed for a MTB focused holiday & the property was just a short stroll to the centre of the town.
Bike wash down & bike storage facilities were good, I would say that the hooks for hanging the bikes could probably be upgraded to suit modern MTBS's.
We were blessed with great weather during our stay & my only other suggestion would be to have some more outside furniture to lounge about on & enjoy the views.