JRSC are crap. I never understood superchargers on 4 cylinder cars. Yes, the powerband is more consistent but the power it robs from the crank plus the lack of intercooler is enough to turn me off. I don't like gaining 80 hp from the FI just to have 20 of it stolen right back from the SC pulley. Turbos don't have as much of a consistent powerband but the gains will always be more than a supercharger and they are driven off waste energy instead of stealing it.
The JRSC is about the only one you will find for your car, so if you don't like it, there are tons of turbo kit options out there that will run you less than a supercharger because you can build your own and you will get more of a hp gain.