Does what I need – almost

I wanted a gallery to replace WP gallery that included captions, which this does. It works well and lots of flexibility. Most other gallery plugins seem too high powered for my needs.
I only wanted to have a few 2-4 image galleries on a page, not interested in albums or pages of images etc.
I had problems with 2 column displays being too large, and a single column is the whole width of the page! However, they tried hard to help and I appreciate that (see support forum).