I feed my little Dex TOTW-wild sierra. He seems to enjoy it as I have never had an issue with him not wanting to eat it. I fed him on a schedule and according to the specifications of the manufacturer.
The only thing that I have noticed that I have been concerned about is the frequency that he is defecating...but this seems to be his normal "system" because when I had switched him to another brand he did the same thing.
I like TOTW because it is grain-free and it is reasonably priced compared to other grain-free brands.
Not sure if you have a "Feeder's Supply" near you, but they offer what is called 'feeder-repeater' and once you have purchased so many bags of the food you get one free--minus tax, of course
I hope you find something that your little one likes!