Asking people how they feel generally isn't a great way to evaluate your product -- you have to build it and see how they act. You can ask potential customers what features they would like to help guide you, but I wouldn't necessarily add or cut features based on their answers.
The best way to tell if someone needs your products is to just get it out there and see if people actually use it.
Some anecdotes: I was in a focus group once about cell phones, many years ago. They asked us all if we would want a camera in our phone. All of us said no, it wouldn't be worth the extra expense, because we couldn't think of a single thing we'd use a camera on a phone for. It's a good thing Nokia didn't listen to us!
On reddit, check out the /r/ideasfortheadmins subreddit. It is filled with ideas users think they want, including features reddit used to have that no one used.
What I'm saying can be summarized by the (incorrectly attributed to Ford) quote, "If you had asked people what they wanted, they would have said 'a faster horse'".