Naturally I have tried other brands with a certain degree of benefit. Decided to try OKCBD 400mg (Summer Berry) version which was delivered very quickly. As far as I know this is the only brand that flavours it's product so as to reduce the normal horrific taste of the oil. Well I am pleased to report that there is literally no taste apart from the chosen flavour. Strength is good, I think that the 400mg version is equivalent to 26% by volume. So less drops are required per dose. Overall the oil has allowed me now at long last to have a good nights sleep and during the day anxiety and stress is greatly reduced. I highly recommend OKCBD for professionalism and quality and will definitely be using this company in the future.