My family was at VB over Thanksgiving for eight nights. We actually bought into the Disney Vacation Club a year and a half ago, with VB as our home resort and this was our first trip there.
I have to tell you that we absolutely loved it and already have another trip planned. We plan on hitting VB for the last several days of every Disney vacation. If you go to the DVC board, you will find alot of info on Vero there.
They have activities for kids of all ages, so I wouldn't worry too much about that. It is, however a much more layed back resort than you would be accustomed to if you stay on Disney World property.
The place is beautiful, the restaurants are nice, there is a wonderful lounge in the main building where you can sit on the balcony, have appetizers and drinks and watch the sunset, even with the kids, lol.
The accomodations are great. We stayed in a one bedroom, that had a great view of the ocean.
There is a wonderful slide in the pool, game rentals, movie rentals, miniature golf course, but the nicest part are the employees. They go out of their way to make your trip a memorable one. I get up really early, and I would head to the pool and read. I would get there probably an hour before the pool even "officially" opened, and there was usually several people mulling about, cleaning, getting ready, etc, and I had a great time over the course of the week, just talking with them.
Your kids will love it, and you will all have a great time.