We use Pm benchmark in our school. We assess the children twice a year. We assess them using kit one the first term, and then we assess them using the second kit in the 3rd term. It can be a bit confusing when you first have a go, but soon get the hang of it. The one thing I would say that is important is if they can answer the questions. I work in an international school, and many of the children are taught at home to recognise words, but often do not have any understanding. For example, I have a child in my class, year 2, who is able to read level 29 perfectly, but when it comes to answering questions about what he has read, he does not actually have any understanding of what he has read. Therefore, I do not assess him as being at level 29, but the last level where he was able to answer the questions. It's all very well being able to read the words, but are they then able to use them themselves and understand what they mean? Apart from that I think PM is a good tool, and have seen the children make progress each time we assess. We will be starting our next round of assessments after the 2 week April break, so hopefully the progress will continue.