I only have real issues when the projector and the computer have problems talking with each other. I would like to have more time to work on lessons that integrate technology better. One Note is great and I like using it to give notes and go over homework. I have learned how to import scanned pages into One Note which is great.
Already having the technology background I do, just learning the ins and outs of the tablet has been fun, but I do get bored easily.