I guess you get what you pay for.
This is the best non GM, non-cartigenic protein on the market. Everything is raw and vegetable-based, so what you're really getting is the most digestible and nutritious fuel possible prior and after your workout. Something that your body recognises naturally, instead of artificial, hard-to-digest chemicals.
This helps keep you honest between meals, meaning that it accelerates weight-loss. You will also feel more alert and energetic after drinking this, allowing you to leave the gym, or finish your run less fatigued than before. You can get the Sun Warrior Raw Protein cheaper gram for gram, if you look around, and it's really good too, but this is better.
I'm waiting to see if the recently released Rawlicious (UK) Ultimate Raw Protein can compete and save me a few quid, but right now Garden of Life Raw holds the crown.
ps You might want to give the vanilla flavour (sweetened with Stevia) a try if taste is a priority. This particular product is nutritious but unfortunately not delicious, at least on its own.