I feed this to my insulin resistant mare (in my avatar) and am quite pleased with it. But I am not sure it is the best thing for picky eaters - for one thing it is pretty pricey and the only picky eater I gave it to didn't want it.
For picky eaters (or those prone to ulcers), I soak alfalfa cubes, add a little Natural Plan Stomach Soother, a bit of soaked beet pulp (if desired) and then any supplements needed. I find this is much more palatable than grain, and also easier on the stomach. Protein is comparable to the Wellsolve L/S grain too, at about 12%.