I think the end result / production model looks better than the over the top concept version. Based on most reports the BRZ / FR-S (basically same car) are well worth the cost.
They may not be all that fast but they are among the most fun / rewarding cars to drive for the money and then some according to reports. Many say they’re close to the MX-5 Miata in terms of being fun to drive so in that case there’s no doubt the BRZ/FR-S are well worth the money. People often bring up the Genesis Coupe (are some other merely quicker car) for comparison saying it's a much better deal because it has 274hp and runs a quicker 0-60, etc.
Personally I pick the car which is most fun to drive over the one "s" which is merely quicker, have more HP, etc. Those things only matter if you for some reason race your daily driver's for a living. I don't race my daily driver's for a living so the cars test track #'s mean next to nothing as far as I'm concerned. How the car drives/ feels from behind the wheel is what's important not its 0-60 time.
I wouldn’t want an over powered car for the street regardless because most of the time the posted limits don’t allow for it. A car with adequate / moderate power can be a lot more fun because you can actually run it through the gears without worry of going to jail for running 30+ over the limit just tapping the throttle briefly. If I had a race track in my back yard I wouldn’t mind having a really powerful car but for the street / public roads