Depends how you define easy... it may be a lot of work, but its a lot of work that I know both you and I are going to thoroughly enjoy, which realllly makes the "work" easy to do. As far as complexity.. you can grow decent plants really simply, from there on its as complicated as you want it to be, literally... to infinity and beyonddd, which is where you'll be spending most of your time as you hang out on the couch, enjoying the fruits of your labor, and ponder the universe.... that is, as long as you keep progressing your cultivation skills.

Just make sure you enjoy whatever you're doing, and remember that any mistakes, damaged, or deceased plants should be an excellent learning experience at least in some round about way. So take it all in and don't try to search for answers too hard, plants are good at explaining their issues to good listeners...