David Lindquist of the Indianapolis Business Journal (IBJ) attended the first Fishers Event Center show Friday night, the Turnpike Troubadours. He gave the concert high marks. He also spoke with a number of people at the concert and all had high praise for the show and the new venue. (You can read the story at this link, but you may need an IBJ subscription to access).
One issue Lindquist identified in talking with concert-goers was their lack of understanding about how parking works at the Center. Because there are no barrier arms or booths, a number of customers assumed the parking is free in nearby lots. It is not free.
You can reserve your parking area in advance. In the lots themselves, there are signs with QR codes, allowing you to pay for parking after you have arrived. If you park and fail to pay, a license plate reader will identify you and you will owe the parking vendor $20.
More information is available about parking at the Fishers Event Center at this link.