I am a former audio engineer, and imo, the system is very good. It has issues with a lack of low-end that would be better and more accurately represented by a decent subwoofer (if you turn the bass parametric sweep they have up to get a proper lowend, then the low-mids get very boxy and muddy - that's where you need the sub.). it needs more punch below 100 to 80hz. It's also a bit artificial sounding in the 5-10k area, it has some odd artifacts that make it sound a bit strident and metallic and not natural. Not sure if it's tweeter materials or construction, or the processing. I think a good outboard processor from Crutchfield, et. al., would do the system a lot of good. I'd be hesitant to replace speaker components because, for better or worse, they are designed to work with each other and the minute you change one, it disrupts the balance between all of the speakers and will probably lead to even more imbalance of sound.
But that's nit picking, though. Overall it is a very good and accurate system (imo) that can get loud, too loud for ear health, tbh. It's just not a bass-heavy, scooped-mid sort of EDM or rap / hip hop system that will rattle your windows.
Also, the number of speakers has zero to do with sound quality or loudness, I do not know what car makers are in this ridiculous race for 'number of speakers equating to more awesomeness' - my audiophile home system has 5 'speakers' and it sounds amazing, 10 times better than any car system I have experienced, because all of the components are high quality, manufactured well, and matched with very low distortion amplification and great processing. Car makers will dump 17 2-ohm speakers of crap into a car, match it with a relatively weak amplifier with mediocre to poor total harmonic distortion characteristics as well as a BBE-style processor and tone stack (to fix the sound quality issues created by the crap components), and suddenly you have a 17 speaker pos that cost you a 1500 monroney markup.