I got some sample packets of this stuff at GNC the other day and it is by far the best tasting protein shake I have ever had. It has more calories than most others but it is seriously almost like having a dessert. They have four different flavors chocolate milk shake, vanilla ice cream, strawberry milk shake, and mochaccino. The mochaccino is my personal fav out of the group. If you're looking for taste it is probably your best buy.
I just bought a trial deal of syntha-6 where you get one serving of each. I loved the mochaccino and the strawberry. The cookies and cream was good too. The vanilla and chocolate however were as good as your average protein powder so not worth it in my mind. The only downside is there's a lot of cholesterol in it (compared to others).