They are large, and they gallop across your ceiling like demented gazelles, chasing down cockroaches.
However, they're nonaggressive to humans, you'd have to seriously harrass one to provoke it into biting you, and the worst they could do to you is a beesting-like bite.
Sorry, as an arachnophobe, Kevin better stay out of my house or have a faster draw than I do or he's toast. Castle doctrine applies to spiders that large lmao.
This is all true except I've met huntsmans with different names.
Also as you said, they are not completely harmless like OP requested. Going by these standards we could also list a lot of animals that occasionally bite or sting non lethally if provoked.
There's apparently one subspecies of huntsman that could make you a bit nauseous and headachey, but the majority aren't going to do more than hurt a bit. And yeah, they're cool.
Of course, I'm not going to take responsibility if you misidentify something else as a huntsman...