Really enjoyed reading this thread --Even though I am a Dietian and health coach I also was considering trying Zoe because it looks fun! (Plus the people that started it were my lecturers and they do know their stuff).
I think tests like these can be motivating to certain people, (especially people who still think breakfast cereal, orange juice and toast are the best way to start the day, as blood glucose monitors can be quite eye-opening in those cases). But yes, you can get blood glucose monitors (and poo tests) elsewhere too . I'd say that the most novel thing about Zoe is that it can measure whether your body has an inflammatory reaction to certain fats. I'd be curious to know what that result was for me.
I love tests because I like learning about my body. But I look at them like fine tuning, best done after you have the basics down.
Because when it comes down to it, whatever tests you take and whatever results they give you, the basics of healthy eating, as many of you pointed out are similar for a lot of people. The "zoe way of eating" is not any different to what I, or others who are up to date on the research, would advise as a starting point. Sadly, no one will be told they can have pringles and ready meals...
The HARD part is actually changing your habits. If you succeed, it's no longer something you have to think about most of the time. It's not a diet, it's just something that works for you and it becomes automatic.
Zoe might motivate you or it might give you more knowledge. But getting there is more about implementation than knowledge.
You have to find the meals that will make you feel great, yes, but they also have to be practical, and suit your, tastes, needs and life-stage (with the differing nutrient-needs those bring). And as a lot of you have said, I guess a a chat-bot coach is not going to help you with that!
I still might try it but will probably wait, as the technology is improving all the time. And will go in with my eyes open.