Go! Go! Go!
I went last year and had an amazing time. There are a lot of repeat attendees. The events are first class and well worth the cost per person. They get a number of vendors to give seminars that are quite interesting.
Unfortunately, I will be at a wedding this year and won't be able to go, but I would recommend it to anyone. They make you feel very welcome and the Newport Yachting Center is probably one of the best locations in Newport because of its central location.
For those of you that won't be able to go this year, they usually plan it the third week in July every year.