My personal experience is with IBM's ELM suite of tools (which I find to be highly scalable and configurable, but lags the competition in terms of an integration ecosystem as well as look and feel).
However, most of the industry has now shifted from ALM to DevSecOps…
IMO, if you're trying to do Agile and continuous delivery, ALM may actually not be a good match. Traditional requirements management should be replaced by customer interviews and backlog grooming. Test management should be replaced by test automation that's integrated into…