"More convenient and responsive" would be my vote, so I had to vote "faster". Most apps are still clunky, and there's an obvious air of "not there yet". For instance, I want to give the spoken command "find the route options for bus from here to home". Now, I have to click the bus search client, manually write the address, and then wait. Wait a long time, because it first tries and fails to get a GPS fix. Then, it communicates with the remote server several times, each taking 1-2 seconds. Finally, I get one route option, not a selection of options. (Andropas) Since the GPS fix doesn't work and the algorithm for finding the route to the final address is rickety, usually I just memorize the bus stop numbers and directly search between them. Now an "update" installed a forced autosuggest feature that forces the user to wait until the client contacts the server for allowed options, so the memorizing stop numbers trick works even less efficiently.
This just barely beats taking a paper timetable and just looking it up there. This sort of experience isn't just one app, it's pretty much all of them.