Welcome to our forum, there, FRSBRZ86Help -
Oh, I reckon a newer 86/BRZ is as reliable as most other cars.
As suggested, go take one for a drive. What you see and feel is what you get. It ain't gonna get any faster nor bigger nor quieter. If it feels good when you sit in it, just choose one that has the transmission you prefer and the color you think is perty.
humfrz