With this, you can even have a business page representing your business in internet market. This will help in Google advertise, a user to follow and engage with your business on a personal level. With Google+ hangout option, you can also directly communicate with your audience and show them a demo of your product and services, if they want. Remember, a customer will always choose a reliable medium where he/she can easily understand the things. On the other hand, it has a disadvantage that conversation on Google+ can get sometimes difficult to handle.