[Tcepsa]

If they do it properly and walk through it with you afterwards, it can be a good opportunity for you to assess cultural fit as well based on the conversation that you have; are they hypercritical of unimportant details? Do they acknowledge good design and decisions? Do they offer their own insights, and if so, what do you think of those insights?

Also, you might find yourself in the unfortunate position of looking to find a job without already having one; many people find that a compelling reason to "jump through hoops for nothing but middling compensation"