Not OP but I have both Libby and Cloud Library because I have library cards for 2 different libraries. I default to Libby but if they don't have the book I'm looking for I check Cloud Library. Both are really easy to use though. There's usually a wait-list for new/popular books, but sometimes your library will acquire additional digital copies. It'll tell you your expected wait time and how many people are in front of you.
Not OP but I have both Libby and Cloud Library because I have library cards for 2 different libraries. I default to Libby but if they don't have the book I'm looking for I check Cloud Library. Both are really easy to use though. There's usually a wait-list for new/popular books, but sometimes your library will acquire additional digital copies. It'll tell you your expected wait time and how many people are in front of you.