Have used however did not purchase, its easy to blend in with bananas and dates, tastes sensational in that combination. If you are looking for protein however load up on dark green leafy vegetables, or if you are looking for a protein mix, try to source hemp hearts (hulled seeds), 30-40% protein with a great ratio of Omega 3-6s. In Aus you can purchase it as 'animal feed' which is true... feed it to ANIMALS only...
On another note, are humans considered animals?
For now, lets say yes, yes they are.
Check out hemp online, in US it is available in granola, proteins, motherless milk and all sorts.
Cheaper, tastier and has some whopping good nutrients.