This is exactly my setup as well and I'm a big fan. I would say the two areas of opportunity for improving Reeder's experience, in my case, would be to automate viewing articles in Mercury Reader instead of requiring a button press and to provide a better option on iOS for navigating to the next article from within the current one. You can press a button to jump to the next article but I'd love a gesture for accomplishing this without needing to reach the end of the article.
This is exactly my setup as well and I'm a big fan. I would say the two areas of opportunity for improving Reeder's experience, in my case, would be to automate viewing articles in Mercury Reader instead of requiring a button press and to provide a better option on iOS for navigating to the next article from within the current one. You can press a button to jump to the next article but I'd love a gesture for accomplishing this without needing to reach the end of the article.