[JazzleSAURUS]

I think the two main questions are the following:

Will my car still be reliable after I go S/C?

Will my car be as fast as I think I want it to be?

Reliability: Get a good reputable kit from a good reputable manufacture installed by a good reputable shop tuned by a good reputable tuner and keep up on maintenance and you should be in decent shape. Keep in mind it WILL NOT last as long as a stock motor, it adds inherit complexity and risk because you're making more power from the same components. Based on my research and learnings, the stock FA20 is up to the task of a nice bump in power, (The JRSC C30 and Edelbrock kits in stock trim seem to be quite reliable, and make great power.)

Will it be fast enough: These kits will push you back into the seat nicely through the power band. They will be less violent than a turbocharged car like the ST you drove recently. I think if you go to a local autox and try to get a ride along in a few basic supercharged cars you'll get a good idea of what you're getting into.

They will make similar power and be lighter than a 2015 WRX, so you'll be in good shape there if we're using it as a power benchmark. That said, those cars are making some pretty insane power with exhausts and a tune.
EDIT: I double checked, I was thinking of the 'all the killer b parts' 2015 WRX. It still drives nicely with a tune, but killer b is what's up on those cars.