I was looking for a plugin so that I could insert a few pictures directly into articles. I didn't need pagination / categories / UAC / and all the other complex stuff. But I did want it to look good and be settable for things like number of columns and rows / centering / choice of source image folder / etc and to work in all the major browsers
I won't name the others I tried and abandoned in frustration. Suffice to say that Sigplus ticks all the boxes.
I have not tried it as a module yet. Will report back when I have.