As a solo developer I will say that testing is pita because, at least for me, it's difficult to expose the ways users will interact with the UI and I tend to us

As a solo developer I will say that testing is pita because, at least for me, it's difficult to expose the ways users will interact with the UI and I tend to use it the same way over and over. I've never worked with a team so I really can't say if they experience the same thing. I suppose they should uncover bugs better than I alone but users would still find some. It took me a pretty long time to suss out all the ways users found to break the app after adding new features so I have to think teams could benefit from a service like this. Hopefully others will chime in here for you.