I joined the 2021 beta after looking for a Goodreads alternative. I mainly use this for keeping track of my reading and they have a lightweight embed widget for displaying books from your lists on a website. In early 2023 they opened up the CMS to "Librarians", select community members who want to improve the book metadata in the database. The UI is good, but I've noticed a lot of products in this category are starting to look similar. The community is good, but many of the readers I want to follow are using different apps, I find myself wishing there was a way I can subscribe to people on other platforms through something like RSS.
It's very smooth to use compared to Goodreads. However, it's unclear how it's helping us discover new books to read - the recommendation isn't as robust and when asked to recommend, it takes you to one specific book and there is no way to ask for more.
I've been using Literal as my main books tracker for about a year, and it's been amazing. An excellent Goodreads replacement, I use it weekly to ensure I track my book reading, keep up with friends reading, capture good quotes, etc. The feature set keeps growing and my shelves are always cleanly organized. Love the product and the team!