I honestly think that, apart from maybe the slightly lackluster first couple of episodes, there is not a bad episode of Prodigy.

In fact, it's too bad those first couple of episodes are what I would call the worst two episodes of the series, because people gave up and missed the rest.

If they'd just stuck around for a few more episodes, they would have gotten to the Kobiyashi Maru episode, which I honestly consider to be one of the best episodes of Star Trek period. The sound editing alone blew me away.

It doesn't make a lot of sense for Seven to have a mirror universe equivalent. The only reason she was rescued from the Borg was because Voyager was in the Delta quadrant. I cannot imagine mirror universe Janeway would have done anything other than use the caretaker device to get home.

Mirror seven is probably a drone.