Well, I have tried both, and must admit that the enet library was so much easier to load than the overdrive was for the first time. My only complaint was that I had to try 5 or 6 titles before I found one available. I don’t know if there is a browsing screen where you can just wander and look at titles, but I didn’t find it and that would have made it easier for me. Overdrive does have a new titles area and I often look there first.
I would certainly use either one of these options, and once you have gone on initially, then it really is very simple in both formats.