If you ask Dr McDonald he will tell you there are not enough samples, even with AI, not enough samples and that any admixture is very hard to read. Even if it were to read accurately it will not pin an ethnicity to any specific ancestor and will not lead you to a paper genealogy trial. At least Y and MT-DNA can give you some kind of solid answer on possible county of origin for one specific line ancestor. It can stand alone without paper but can also possibly lead you in a direction to find paper for that specific ancestor. These autosomal tests at the moment cant do any of this. They need to phase the DNA to separate the DNA you inherited from each of your parents. That would be a start. -- and just in general with Europe Vikings did invade Ireland you might see some people who claim to be UK and they actually have a Nordic line. They may show up haplogroup I instead of R1b on Y DNA