I use DipTrace, and I'm very satisfied. It's not free, but it is quite inexpensive. I tried EagleEAGLE, which seems to be the most widely used, but I was horrified about its unfriendliness.
To me, it's not only a thing about learning curve, but simply making things harder to do than it should be. MadeIt made me remember a traumatic experience with AutoCADAutoCAD during the late 80s1980s. I tried many other low-cost and free alternatives, but they either were also a bad-UI, unstable, or had a poor component library. The only under-100s package that worked well was DipTrace. Its weakness is that the PCB router is not very efficient (it was unable to route some boards that I was able to route manually without much effort), in particular when you have few layers, but to my use this was a minor limitation in comparison.