I'm the author of Anwendo tool, your feedback is much appreciated. Especially negative one, because friends willing to support share only positive feedback.
Comparing to Selenium Grid - no programming needed, just use this extension to record them. Comparing to Selenium IDE - test maintenance is simpler and semi-automated, we have heuristics that adjusts to the page structure changes and avoids hard-coding UI element locations as Selenium IDE does.
It's a cloud service, we manage and update test environments.
It also saves your time when troubleshooting test failures - it's much easier and faster to understand why tests fail with the help of highlights and screenshots.