Of the challenges that I did, I would say I enjoyed all of them bar the shooting challenge and the final paddle one. Even those two I wouldn't say I disliked too strongly; the shooting one my complaint is that it really tested how reliable your tribe's internet is, which isn't something that I think needs to be a thing. And the paddle challenge was almost fun, but the glitchiness frustrated me to no end. That said, 2 'meh' challenges out of what, 15 is a pretty great ratio, and the mod team deserves props for that.
The flea market was a great thing to start the game with, so that there was some intrigue even for the winning side. I also liked that, for a few challenges, you included something of a trick to them in the descriptions - the skiing one had the fast-forward thing, and the simon challenge made me laugh when I saw the scores and realized what 'anything but a bot' really meant. The jaguar shark hunt and the Eli Cash challenge were memorable, as well.
Structure wise, nothing felt like it was BS or unreasonable. There wasn't an abundance of items but it wasn't totally vanilla either, so it meets the expectations of the category. The rings didn't appear to make a huge impact fmpov this time, but from an insider perspective it probably actually did a lot to shape the factions if that makes sense. Kidnap twist was actually pretty cool, as was leaving a swap so late.
tl;dr is good job mods, would play again.