I got the M&S one last year. It was pretty poor tbh. I have loads of unopened samples I didn’t use. It looks like it’s the same stuff again this year. We got my daughter a Sephora one and it really was the same story.
sample sizes are great for free. Not for £40 and you don’t use most of them.
Spend £1.50 on a dairy milk one and then £38.50 on something you really want, or one of those build your own glossy box style things. Then you get samples you’re interested in.