Due to Goodreads I started off with the 5 star rating, though not exactly how Goodreads said (2 stars out of 5 is ok?) and since i've been reading more I've ended up going to quarter stars (rounding up or down on Goodreads as appropriate) and I know that can be a lot so here is just a quick overview of what the ratings mean to me personally. For .5 and .75 ratings I do round up because Goodreads does not, as of writing this, have 1/2 stars.
1-1.5 stars- I really did not like anything or much about this book.
1.75-2.5 stars- I didn't hate the book but I didn't like it. It could have problematic issues or it just really wasn't for me. There were probably some things, however small, that I did enjoy.
2.75-3.25 stars- A decent book. I didn't love it but I didn't dislike it. Middle of the road. It was alright.
3.5-4.25 stars- Really enjoyed reading it! Not a favorite but probably close to it, aka an honorable mention! I am glad I read this book and would recommend it to people that think they'd like it.
4.5-5 stars- Loved it! A Favorite book!