The general wisdom is always talk to the customers. The question is how to reach these customer before you decide to build an MVP?
Can you share your success story in
Before I made a MVP I made a simple list of gear warranty lengths and posted that around on forums and reddit. This allowed me to get a conversation going and see if folks thought that having this data would be needed or not. Feedback was good with folks saying there's no where with this info so it would be good to have - about 90% said this. I kept the MVP simple and invited folks to rate their warranty experience. About 80% of those invited do a review and further feedback was that this was great and really helpful. Further folks asked for more categories so I just added what they wanted - tents. So to me this validated the need which I also had for myself. You can view it at trustfuss.com