Quick correction on the effort levels — after looking into this further, effort level controls (Default / High / Custom) are a Team plan feature, not something rolling out to individual plans. On individual Pro/Ultra, BugBot runs at the standard effort level by default. Apologies for the confusion in my earlier reply.
On pricing — yes, the $1.00–$1.50 cost is per BugBot run, not per PR. By default, BugBot runs on every commit push to an open PR, so a PR with multiple pushes would trigger multiple reviews. You can limit this with the “Run only once per PR” setting in your BugBot config. I agree the docs should be clearer here, and I’ve noted the feedback.