Thanks for the feedback.
1. If you watch the script as the bot is working you'll see a red circle appear to show you it's "working area". This is where you showed it how to do that task, so if you showed it again but in a different place the red circle would move there instead.
2. This will be address very soon.
3. They're not unbreakable but they should last 10x more than wooded versions.
4. We'll be improving this as we go.
Thanks!