I have problems with the flow of my reviews. I write them in the order that I think of things so it normally end up being title, pro/cons/summary, packaging (if i do it), care, material, performance, size, and then use. As a result the sections don't flow together well and I have to go back and read it in order before I post.
I also have problems with writing certain sections the same way in almost every review. I try to go back and change things before I post so they don't all sound like i cut and pasted the info from my other ones.