Don't agree with some aspects of your summary. Jang's opinion:
1. He likes the set
2. There seems to be a lot of repetition in the structure, but actually LEGO did a pretty good job in mixing it up. There's never more than 4-6 of the same pillar build, and you build max 2 the same at a time
3. Mechanism works really smoothly, including an "infinite loop" setup with optional motor or Boost pack
4. Good value for money, and simply HUGE compared to other sets.
Negatives:
5. Track pieces are not sticking together very well - you need to occasionally check your tracks, especially when you move the set around, otherwise carts get stuck or slow down
6. Little possibility to "customize" the track - lots of complex and specific engineering and LEGO math went into this set.
7. Even though it all looks very engineered, the structure has quite a lot of "give" or "play" - not as sturdy as it looks.
Overall a positive review.