LogRocket looks interesting and may be very helpful for debugging problems in production or optimizing performance. But FullStory or something like it fits my current needs better. I just want a video of real users interacting with the site to see where they get confused. And I don't want to spend a lot of time integrating code to get it to work. That is what FullStory is promising but I haven't tried it yet.
If you're looking for a more developer-focused product, you can also check out LogRocket (https://logrocket.com).