We used Tutum before it was acquired by Docker and turned into Docker Cloud. Whilst it probably would never have scaled to our complexity needs indefinitely as

We used Tutum before it was acquired by Docker and turned into Docker Cloud. Whilst it probably would never have scaled to our complexity needs indefinitely as we grew, it was very clear that as soon as it was purchased the product stopped going in a positive direction. The only changes that they really rolled out were replacing the older, perfectly functional UI with something superficially shinier but much, much harder to use. Not only was it just hard to see what you wanted to see once they'd halved the information density and got rid of any visual hierarchy, you had absolutely crazy things like a slider for the number of instances of a service that would instantly apply with no confirmation and, even crazier, responded to the scroll wheel. We once doubled our number of production pods and didn't notice for a few hours, because someone scrolled up the page and their cursor went over the slider. Lucky they weren't scrolling the other way. Anyway, I lost a lot of trust in Docker as an organisation that knows what people value about their products as a part of that.