h5ai is awesome. The interface is fine. The problems I had were that the process of generating thumbnails is pretty opaque. It appears to start generating them when a directory is first visited through a browser, via a background task. However, it seemed like maybe the process stopped if you closed the page before it finished. So it became sort of this dance where I&#x27;d leave the browser open and monitor Top to see when the process finished. But even then sometimes it would freeze and thumbnails and previews would never load. Also it doesn&#x27;t appear to do on-demand loading, so if you have a ton of photos in one directory it takes forever to load. The single and multi download features are perfect though.