How to judge whether the main brush, edge brush and other accessories should be replaced?

[Newshound]

Not yet. This status update was posted 2 days ago:

Robot Vacuum parts - NO answers

We’re super sorry about that! The parts were supposed to be here earlier and then last month. Right now, there has been a delay with the boat docking but we are getting closer. We are aiming to have them for sale this month and we apologize for the delay, confusion, and app experience.