Haven't spent New Year there but stay October last year. Good site. Clean. But can get really muddy. Many around us had problems either getting on or off. Swimming great if you have kids, was very strong with chlorine though even in jacuzzi. Try to pitch up away from club if you don't want noise from disco etc. Shower block has combined bath/shower. And chip shop outside site will be shut for Winter by the time you get there. Make sure you have your passes with you otherwise you'll never get inside. And although there is a 'supermarket' on site don't expect much more than basics and go early for bread. Hope this helps?
Been twice this year, once in Feb 1/2 term and the other in May for the last Bank Hoilday. Enjoyed both stays, the entertainment is good if you like staying around at night, several types of bars to suit all. One for kids entertainment. One for adults only and a Sky Bar for all the sports etc. Should be great at new year.