I continue to use Pro ATC/SR after a few months and have learned to workaround the many bugs and it works great most of the time. I find the user interface and simplicity of setup vastly superior to the other 3rd party ATC solutions (based on my experience trying the demos).
The only reason I would hesitate to recommend it would be the lack of demo to try before purchase, bugs that require workarounds, weird support forums and the lack of updates (promised big “update” for a while a now with nothing). I still use it every day and do not regret the purchase despite these caveats. Just hoping default ATC someday gets some attention and necessary updates then I would gladly use that.