I suppose its all relative to where you're at in terms of your game
if you're a newbie then a coffee shop date might not work for you as much as for say a MPUA (Like David DeAngelo who suggested it in Double your Dating) who can make virtually any situation work for you to your advantage because your skill set is higher.
I believe for a woman to meet you again that she must have a "experience" that sparks emotions so that when you ask her out again, so she thinks "yeah I felt something for/with that guy" so then is motivated to say yes!
if you're a beginner, maybe a venue outside of her normal experiences would help spark those feelings which she would attach to you as a cool guy who knows where to go at least.
if you're an experienced player who can elicit feelings then the venue doesn't matter as much, because you're used to opening on women everywhere and have no fear to overcome, so a coffee shop might work for you.
in either of these cases, the girl would "feel something" and probably want to see you again.
I'd therefore say coffee shops are bad for newbies but may work for more experienced players who can inject feelings and give her a good experience(despite the venue) to brighten up her otherwise boring day.