He had fitted the tray arrangement and loaded the job, while I followed the prompts and started the supervised sequence; my draft somehow translated that into I had it working quickly

That gives you a useful replacement for the setup claim, and I would name any help during the sequence too, if there was any; preparation is not necessarily the only support a demonstration hides.

I've replaced the setup claim with those details and added that he talked me through an interrupted run, thanks Yasmin; I still liked following the prompts, but I haven't demonstrated independent setup or recovery

That is a positive review I can interpret: enjoyable supervised use, with the preparation and recovery help stated where they belong, rather than hidden in a small disclaimer.