If you're still trying to compare Google+ to Facebook, you shouldn't be doing that either. It isn't a Facebook clone, and is only a competitor in some ways. The fact is that Google Plus is growing, and it's providing businesses with a whole new way to communicate with prospects and customers. I've set up several business pages, a very fast and easy process, and I'm slowly building a following on a couple of them.
I've written a summary article and set of article links about Google+ here. You should be getting involved in Google Plus now, but only if you're going to do more than set up a page with no photo, About information or links. The few steps that are required to make the most of your Google+ business page and personal profile will be well worth it as Google rolls in their other services and begins to give more value to Google+ pages in their search algorithms.