As you get off the plane, is it a long walk to the Boston Logan Car Rental? is there shuttle service available?

Yes there is a shuttle and I would highly recommend using it.

I will recommend to use the shuttle. It runs every 30 minutes or 45 minutes.

Get on that shuttle or you'll be walking for like an hour

Yes, you need to take the shuttle....it's a good way to the rental area.

Yes, there is one. Many signs to see in the airport of where to go. Once on the bus returning from the rental center the bus gives instructions as to where your airline is so you know where to get dropped off.

Yes there is a shuttle. It runs through very often. It would be too far to walk.

There's a shuttle , I was thete a couple weeks ago

I don't think there is a shuttle from the gate to the rental center. It's a decent walk with escalators and moving walkways if I recall. You could always ask the airline for assistance.👍