i subscribed for 3 years to get all the Jack Reacher and Nick Stone books, very good service, limits you to 5 devices though, so each time you register a device like a laptop desktop or phone after you hit 5 you have to call their (excellent) customer service team to get one removed.
i dont subscribe anymore as i dont drive to work so i bought a kobo for the train instead.
Allways try and get the unabridged versions of what your after as well as they tend to cut them a bit too short otherwise.
but yes, would reccomend audible in its legitimate state anyway, cant comment on "other means" of audiobooks.
standard subscription of £7.99 iirc gets you 1 download i.e. 1 book per month irrelevant of its face value and the premium subscription gets you 2 per month