last year we rented a cottage on a farm near ventnor, can't remember the name of the farmt hough, stupidly! (am having memory problems at present, but that's a whole other thread!) However, the whole week was a magical family holiday, and we are going back this year though we have chosen to go nearer freshwater where there are some fantastic sandy beaches.
Near Ventnor, there's a fantastic sandy beach with rockpools called steephill cove, it is just that whole childhood dream of days playing in the sand and foraging in the rockpools, having ice cream in the cafe....
But our haunt was Compton Bay nearer Freshwater, a national trust run sandy beach - there's a car park but no development at all, no cafe's....steps down to a huge, sandy beach with a shallow 'paddling' sea. Oh, it was lovely! Gets very busy though as I suppose all the beaches do.
We went to the zoo at Sandown. There's also a little wax museum there. We went to Robin Hill and also found a bus museum at Newport, ideal for little boys, our DS was obsessed!
I'd say go for it. It's the perfect childhood holiday. 