This trimmer cuts paper and photos very cleanly. Though most of the use it gets is with A4 sheets, the A3 size gives more working space and fulfils the requirement for occasional larger work.
I had bought a cheaper trimmer from a high street store but the cut was not really clean and since this was needed for my daughters photographic and art A level work a ragged edge was not good enough. This A3 Avery trimmer cost more but is in a different league - a much better trimmer. It will even cleanly cut photographs with double sided tape attached (backing paper on!), which is a great timesaver.
I was nearly put off by a previous reviewer's comments about screws catching, but the trimmer we received has the screws well recessed so this has not been any issue at all.
A good trimmer - recommended.