Adrian, another good site to look at is The Old Barn, at Lake.
It has fully serviced pitches, set in their own hedged enclosures.
well looked after, and friendly site warden who lives on site.
Very close to both Sandown and Shanklin,the main holiday places for summer, with good beaches, lots of eating places, etc.
Depends how much family stuff you want on site, or wheteher you want a good, peaceful base from which to explore from.