My friend actually started this company, but my unbiased take is that the flavor is unique but not something I would drink every day. The flavor is nutty and kind of thin (especially compared to the black coffee I usually drink). That said, the different flavors they have all taste great and add a nice set of variety! It was nice to try, but I'd rather just go with a black tea or coffee in most situations.
No improvements needed, it's just not quite for me!