I am not a fan of the either, used to subscribe to them but then I realise I end up eating them because I had paid for it, not because I was hungry. The problem with them is nuts are very high in calories even in low quantities so end up putting on weight rather than losing weight. The whole idea of grazing is you graze throughout the day so to keep your blood sugar level high without a spike (low GI). It kind of replace a meal or make your meals smaller as a result of not being as hungry. The problem is I end up eating the same meals at the same time, with the same portions because these nuts are not filing really. I can go by the same hours between lunch and dinner without snacks, adding 200 calories in between everyday is not good, at all.
Plus, at £4 each, I can get lunch with that instead!