I will offer a dissenting opinion. I preferred the old course. I find the new one to be more focused on looking interesting, rather than providing the best experience on the trainer.
Specifically, I find the constant curves and switchbacks to be a bit dizzying, and they make me avoid looking at the screen during efforts.
With all the curves and the crossover, it’s harder to immediately know where I am on the loop, and since you can’t see as far up the road, it takes away some of the motivational cues of the previous course, where you could almost always see some landmarks a minute ahead to motivate you. This factor will change somewhat with increased familiarity, but it’s definitely the case that you just can’t see as far up the road most of the time.
The longer course also means a longer wait between jersey efforts, which dilutes the fun somewhat. As mentioned above, the green jersey is definitely strange since you can’t even see it until you’re on top of it.
I recognize that the new course represents a lot of effort on the developers’ part and I don’t mean to be a bummer, but hopefully even negative feedback can be used in a constructive way. I do like the giant cycling alien statues.
Ideally we would have a choice of islands/courses and then everybody would be happy!