FanFictionAO3unofficial works really well- with a couple small complaints. The pros are that the interface is nice, tagging system is translated over, and it feels good. Cons though- 1. I paid for the upgrade (which is an ongoing payment, not a one-and-done) and yet though it mentions offline mode, I don’t see any way to turn it on for individual fics or the entire ‘library.’ If it’s there, it isn’t intuitive, because I did a fair bit of digging. 2. The search function could GREATLY benefit from the use of filters. This is a little weird because if you open an author profile, then you’re able to filter by fandom, relationship, etc. when you search a title or author name initially, however, the filter button doesn’t appear. Subsequently, you really have to dig to find titles that might have common names with an author with a common name as well. (Ex- if your author’s name is ‘Evidence,’ that search term will obviously bring up more than just their fics.) 3. The censoring of swear words is exhausting. And again, even though I turned that off, it’s still around. Maybe it’s a bug, but it’s annoying and definitely has me looking at alternative reading platforms.