Yeah, this has been my experience. I haven't had a build agent disappear, but lack of build caching is very frustrating. The hosted build agents are slow to be

Yeah, this has been my experience. I haven't had a build agent disappear, but lack of build caching is very frustrating. The hosted build agents are slow to begin with, let alone needing 5 minutes for every build to restore packages. AFAIK there's no way to "only run changed tests" too. EDIT: Forgot to add that, despite the above, I'm pretty happy with it. The whole VSTS experience (Wiki/code/PRs/etc) is pretty great, it's nice to have everything in a single place.