Went to Centre Parcs (Sherwood) in July 2015. Just at the start of the school holidays.
First time for us and as family innumber we had 2 villas. Was a great place for a weekend get together and will go again.
It was busy, plenty of guests there,but there is loads of space to go into so never felt squashed! Amenities modern and varied. Good quality furnishings and kitchen appliances. Bring your bikes (as cycle hire a bit expensive for hiring in number) and laneways pretty safe.