Questions regarding Sirius XM.

I have had Sirius for about 10 years and like it.
1. The only ads I've experienced are on cable news programs that I sometimes listen to in the car.
2. I have not had many issues with coverage but have occasionally lost signals in heavily wooded or mountainous areas
3. I'm not sure about nationwide coverage
4. I don't like the pricing mechanisms they use. If you let it automatically renew, they ream you on price. I call each time before my subscription ends and they give better pricing.
5. I've had no complaints about the quality of the audio but I'm not fussy about such things
6. I've had to get separate subscriptions for each car but I believe you could include also add-on listening on your computer and/or phone

Again, I think it's worthwhile.