Can you put premium gas in a 2017 Honda Accord LX?

So my Honda Accord 2017 LX takes regular gas, but some people, including the car salesman are telling me that I can really put whatever gas I wish.

I heard that adding premium is better for your engine?

Also if I were to add premium, is it better to have to fill up once I'm completely empty or can I still add premium gas when a bit of regular gas is already in the tank? Will there be trouble if I mixed up the gas?

Of course you can. It's possible to do it. So you can.

There's no advantage to using premium if the car is designed to run on regular. You may even get slightly worse fuel mileage, and definitely will be paying more

You can put premium in if you wish, but it is a waste to do so

Yes, you can dump the gas on the ground and waste even more money or you could just throw the money out the window and save the gas. Use Regular, it will be fine no matter what people SAY. I had a Tacoma for 11 years on regular and my brother has had it another 3 on regular. Engine is fine.