This is definitely of high quality and I bought it as people recommended it as being the best tasting form of wheatgrass and it isn't bad. It's not something I find delicious, but it goes ok in my smoothie.
I bought this to help my mum sleep as her dementia makes her restless. It's early days but I think it does have an effect when I turn it on. I'm experimenting with it to see how much of a difference it makes. Using it with an essential oil is more effective. I haven't used the lights as that would confuse her and keep her awake.