This might be good tech and a good company.

Once we used a distributed caching system in a startup which was open source. Then the open source version got cut features we needed, so we bought a license. Then the startup was bought up by a large software company and the license costs went 10x YoY with a one week notice. As our migration away from this tech was not done, because it was very complicated and tied into our application we had to pay. Luckily we also had been bought and the very large costs were not a problem. I would never again use something from a company that is crucial to our operations.