It's the range where Pioneer actually tries for SQ.
Depending on the music you listen to and how you want it to sound, this could be a good old fashioned head unit. It has active 3 way, time correction, a decent EQ and is of rather solid construction. It does have some positive reviews but I personally like the SD card and USB features along with the "clean" look. I can't afford the 99PRS, even if/ when I have my mid life crisis
That said, most people are perfectly happy with responsive and loud bass so it really comes down to what you'd use it for and how loud your particular Subaru rumble is 😉
Note: you'd want you Dynamat the doors at least and likely use amps between head unit and speakers in a 3 way active configuration to achieve the vision intended by the manufacturer.
disclaimer: I'm no professional in car audio, someone else on the forum with audiophile leanings would give better advice.