I'm using this gallery plugin on five blogs. First time this plugin was installed more then six months ago. Do exactly what I can see in demo section didn't have any problems with configuration or conflicts with another plugins.
Once few month ago I had conflict with jQuery in some other plugin, but support help me to find solution really fast. They suggest me to use alternative mode of the jQuery library as result everything was fixed.
Didn't had any other problem so far. All installations was fast and simple. Few migrations between wordpress versions went fast and without any conflict or problem.
I have one suggestion for developer. Demo section of the gallery do not show album / category building process clear. Only after installation I figure our how flexible structure of the albums could be. I didn't realize all navigation advantages. So please try to make it more clear for the visitors.
All the rest is fine! Waiting for new features and new updates! Gallery is really great! Thank you guys!