Registered Agents (RA) generally are at least on the hook for giving you notices from the state you're operating in. However, they can incorporate your company and help with a variety of tasks related to maintaining your company. For example, you can ask the RA what other services they help with, like will they help you file your annual fee, or send you reminders at least for when your franchise tax is due or other things you'll need to do to stay compliant. As a result, fees can vary a lot depending on what you get.
You don't have to meet with your RA in person often. In fact, many things can get done without meeting the RA at all! It depends of course on the types of services you'll be having the RA do for you. If you're just using them as mail forwarders, most likely you won't have to meet them at all.
As for the part about getting your "business licensed," I'm not sure if you're talking about simply incorporating, or the actual process of getting a license. Some states require incorporation and getting a license, and many RAs do not help with meeting licensing requirements since these can change from county to county.