We used to go there all the time many years ago to go apple picking with our children. Don't remember much from then and we arrived at around 6 pm on Tues and left around 10 am on Wednesday so we didn't see much of the campground. We found that travelling through the campground was a little tight with the Berkshire and we couldn't get level at 2 sites we tried. Other than that, it seemed fine for the amount of time we were there. Not sure what is there for your 4 year old. Another place that you might look into is Strawberry Park in Connecticut. They are a resort campground and have 2 or 3 pools and lots of planned activities for children. They have a bounce bubble (a big domed air filled bubble that the kids bounce on) and as I said, lots of planned activities.
Tom and Margaret
2014 Berkshire 390bh-60