Anyone who wants a good and tasty MRP, I suggest you try Micellean MRP from VPX.
The graham cracker flavor is excellent. It is by FAR the best tasting MRP I have ever tried. Nutritional profile is also good.
Other mrp's I like are: MRM, ISS Advantage , and Dorin Yates. However, these are no where near as tasty as the Graham Cracker was. I also tried the chocolate and it was good too.