We've had AAA Plus RV for many years and have been very happy with it. The nice thing about AAA compared to CoachNet is that AAA will tow you where ever you want to go, regardless of how far it is. If it is more than 100 miles you will have to pay the difference, but you won't be stuck in the middle of no where because the nearest service center was 10 miles away from where you broke down.
AAA also will tow any vehicle, as long as you are there with your membership card. We live in Georgia. We were visiting family in NJ when my brother's car broke down. I drove out to meet him and called AAA. They towed it no questions asked. It wasn't my car and I was out of my region, but they didn't care. The tow truck driver never even asked for my card, so I didn't even have to drive out there. I've rarely had a driver ask to see my card.
While we've lived in GA, we've used our AAA outside our region multiple times and have never had an issue. While we were living in NJ we used AAA outside our region once without incident.
We are happy with AAA and all the money we save just with AAA discounts at different stores and campgrounds generally pays for the membership. AAA saved us over $100 during an 8 day stay at Fort Wilderness a few years ago. When we made the reservation they told us they had no AAA price sites available. When we checked-in, I asked about if they offer a AAA discount (like I didn't know) and she asked for my card and gave us the discount.
-Michael