Outstanding and essential plugin. My forum hosts 2.1 million attachments and proxied images. This plugin reduced storage consumption by 52%, from 582GB to 275GB. It will save me hundreds of dollars annually in hosting and backup expenses, while also helping pages load faster and use less bandwidth.
I just ran this on my system. We have over 400k photos. It ran smoothly with no visible change in quality of photos. This has saved ~40GB of disk space on our system. You will not be disappointed in running this addon. Another benefit is that it reduces page sizes and thus makes page load faster for users. A 4mb photo is now 900k etc..
Had some problems to configure this addon but were quickly supported by its developer. This kind of addons are a MUST in order to save filesize and improve SEO through faster loading.
Thanks for sucha great addon!