coaster brakes...are those the ones where you push the pedal backward? if so, marley does not have that, she has regular handbrakes. and by regular i mean the right one only works slightly.
i actually love her, although it might be because she's yellow and red and green. and she seems so much simpler than my motobecane. she sat in the garage for a month, a month!!! and started right up again on the first kick today. amazing!
i think parts can be tricky to get (like on ebay) but i think she's a stylish bike and reliable so far.
there's a picture of her in the photos section under 1979 columbia commuter, she's the harlequin lady.