I am in my free 30 day trial for the UK Kindle Unlimited at the moment. So it's early days for me, but I thought I would try it for the next six months or so, just to see if it would be worth it. Some books I have read/am reading at the moment are Hugh Howey's novels, which I was thinking of buying recently, but now it is quite useful to read them through the Kindle Unlimited scheme. I
certainly think that it is good for trying books out (making it as more of a longer version of a free sample), also I think that it could be quite good for someone who is a fast reader, who use a lot of books per month. But the actual amount of books by authors can be very limiting, but then I have found that most of Kurt Vonnegut's novels are on Unlimited, so it would be a good thing for me to start reading his novels. I will just have to see over the next six months, and whether it is worth the monthly cost works for me.