The cascading rules structure of overall settings>album settings>module settings means that you can easily create overall layouts but then override them on a per-module basis so that a single slideshow can look entirely different depending on your needs - no need to create multiple slideshows!
The development and support is also great so I'm only too happy to recommend this one.
Peter is a genius and a gent in equal measure and you can always rely on him for a quick and helpful response.
I had a couple of issues that needed some support but Rafael was quick and courteous in helping me out. Would be good to see a sitemap plugin to help with search engines but I have faith that the team will continue to develop this.