I've seen lots of performances here, from Chicago to some acts that will date me.. 9-)
This theatre's main feature is that it is open air, but the acoustics are great, you can hear every note and the cool summer breezes off the ocean provide the right amount of "air conditioning" for those warm summer nights.
The pricing is dependent on who you are going to see, but the cost is less than going to some of the "high end" theatres in NYC. Parking is ample, but not necessarily free. Public transport does go there so it is accessable to folks who do not want to drive.
A wonderful evening, no matter who you go to see.