If it is burning oil, it may need the valve guides replaced. No smoke out the back? All good!
It has a points ignition, very typical for the 70's. You will need to get familiar with the gapping procedure for points, as they need to be re-gapped every 2-3K miles. Or just get an electronic ignition of some flavor and have done with it. I think I paid $130 for my DYNA S ignition.
Long story short, it is old, and you WILL learn to work on it. If you can't, or won't learn how, you probably don't want it for a commuter. Also, get used to leaving for work early, just in case.