I've got overhead transmission lines in my back yard right now. It's really not a big deal. I've got a garden and a small shed that are directly underneath the lines. I have no perceptible loss in utility. Every now and then, someone will visit my property but I don't have to interact with them.

The nature of the easement can make a big difference. Oftentimes the power lines will be colocated with gas pipelines which tend to impose stricter requirements on land owners. It's a lot easier to do things like excavate when you can see what you aren't supposed to hit.