Me and my friend stayed on Mnemba Island in September 2017. If I would choose the best beach in the Zanzibar archipelago, I would definitely go for Mnemba. It gives you the privacy, beauty and exclusivity.
The place is unique and the bandas are unique as well. I saw some complains in reviews regarding the birds, that are disturbing in such an open space. But I think people should remember it is a protected area and it is so special not because of its price or luxurious service. It is special beacuse of the nature around. I loved the sound of birds and felt like I was Robinson Crusoe, but in super comfortable conditions.
The food was great, the chef followed all our requests and was very attentive. Don't forget to try local seafood! I even couldn't refuse to taste the dessert, because it had zanzibari cardamom flavour.
I really loved how they made the bandas. They are attached to the tropical forest and it gives you the feeling you are a part of the wild nature. Beds are really comfortable, no one will disturb you. You might not even see your neighbours during your stay. It is not for party people though:)
I would reccommend this property to people who wants to have a real beach escape far from worries and stress.More