Kiwi seems not to mind Goldenfeast Golden'Obles too much, but I use them obscurely in his diet (ground up to make bird bread or incorporated into a toy). I don't bother fighting with pellets as a dietary staple. There are no pellets in the jungle. I personally tasted several brands after he repeatedly rejected them and frankly, they all tasted pretty nasty. Parrots do have tastebuds, a concept pellet manufacturers seem not to have caught on to. I can understand the struggle to get parrots to eat them.
I prefer to feed a fresh foods diet. Whole grains, beans, fresh produce and some nuts and seeds as foraging treats. A definite PITA and a whole lot more effort but (just a personal opinion) it is a closer diet to what he would be eating in nature with more variety and seasonal shifts in availability of different foods. There is also a higher moisture content in fresh foods vs. dry pellets. In nature, parrots stay hydrated primarily through their diet, not drinking from open water sources. I also find that the small quantities of human grade food required to feed him a healthy diet is far less expensive than the animal grade ingredients used commercial diets available in pet stores cost. I do spend a whole lot of time chopping, cooking, dehydrating, baking etc... meals for him (in batches that last weeks-months), but I do like spoiling him just a little bit