On the MK DS music debate that happened a while back in the statuses.... *shrug*
If I hadn't relistened to some tracks a while back I'd probably agree on the soundfont being bad, but there's just something...cozy? about the instrumentation, I guess? Although there may be some nostalgia bias going on; DS was my first MK I owned, and the second MK I played after SC on the GBA.
When I was going through tracks like the menu music, like the main menu, and the options music (like when you're designing your kart decal), it was it was like rediscovering a buried memory. This probably solidifies the "generic" argument against it, but it's like the perfect lobby/elevator music that you'd put on before the actual action begins.