I havent found any articles or research which shows whether users like it or hate it but studies have shown that voice alone can be a frustrating experience at times due to the lack of clarity and affirmation of the task being asked. To quote this article
Our research To answer these questions, we ran a simple user experience study on popular smartphone personal assistants Siri,
Google Now, and Cortana.
We asked nine participants (three using each system) to set up dinner
and a movie with a friend using their voice as much as possible.
The tasks started off simple: looking up the evening’s weather and (if
it was going to be cold) instructions on how to tie a scarf.
With regards to the task being a success,
Step 1: “What’s the weather going to be like tonight?”
The stereotypical use case for voice commands, asking for the
evening’s weather was natural and simple. Even though participants
chose different commands ranging from the abrupt “Weather” to the more
personal “Is it going to be cold?”, all of their devices presented
them with a well-formatted display of the day’s weather forecast, even
reading the forecast aloud in some cases.
However it always didnt go well
Asking for instructions on how to tie a scarf did not provide the same
immediate satisfaction, showing only the results from a web search.
While the results were relevant to the question, the answers were
still a tap away.
All participants found they were unable to ask multiple questions in
single command. While the solution was simply to split their question
up, the extra step disrupted the fluidity of the interaction.
Similarly there were other issues as well to quote the article
Moving on to the brunt of the dinner and movie plan, participants
encountered a variety of obstacles in moving from one part of the plan
to the next.
The process began by asking their device for “movie times” or to “take
me to a movie.” Much like the weather, participants received a
well-formatted display of local movies and showtimes. However, getting
more specific required manual selection or another search, which
proved to be difficult to do through voice alone.
Having selected a theater, participants moved on to find a restaurant
near the theater. While it was easy for users to find a restaurant
near their current location, it was more difficult to find a
restaurant near a different location or landmark.
Other issues that came up were while trying to deal with unique names which are not normally found in the dictionary
Once the participants had set up the plan for their night, the final step was to send the details to a friend. Most
participants found this easy, asking their device to “text [name]” or
“send a message to [name]”, which brought up a message dialog
prompting them to speak their message aloud. Many were used to doing
this, but still encountered frustration in cases where the systems
balked at uncommon names or cut off long sentences while they were
being spoken. Repairing these misunderstood messages involved too much
repetition and back-and-forth for some participants, who had negative
experiences and commented that they would rather just send a text
Though the above user study is not definitive , here are some suggestions.
- Provide alternative input information methods which allow the user to edit the request
- Be aware of the constraints faced in places with a lot of noise or unique cases such as being able to text a friend with a unique name
- Allow users to break down their tasks into simpler activities which can drive greater clarity
Here are some links worth reading
The effect of ‘Digital Assistants’ on UX and UI
Speaking in Context: Designing Voice Interfaces
Teens Embrace Voice Search, Many Adults Feel “Like Geeks” Using It