It's great that they have a diverse cast, feature culture from different nationalities, and tailor most of the challenges around the locations/countries that they visit. Though could the producers please remove luck-based challenges or put them before an equalizer (e.g., a sign-up board for transport)? They've become better at this, though that still sent one team home in S4 E6 unfairly.
Also, it might be worth learning from TAR 32 and dis-incentivize answer sharing in some challenges.
Overall I enjoyed this series (watching seasons 4 & 5 from 2019 and 2021) much more than I thought I would, which is strange because I don't usually watch reality TV.