My in-laws visited Wednesday through Saturday... they didn't stay with us but visited with us for six or seven hours each day. We did a lot of exciting things... went out to eat (twice!), had a big Thanksgiving shindig at my house, visited a set of Japanese gardens, walked on the beach, etc, etc.
I was really worried about this overstimulating the baby but seriously... during their visit, he behaved like a dream baby. He took long naps, he went to bed when we wanted to go to bed (including once at 8 p.m.!), he was 100% sweet and cheerful when he was awake, and he didn't have fussy time at night.
Just showing off for the grandparents, though... today he's making up for it with the most epic fussy time we've had in at least a week! (He had a great day up until fussy time, though.)
Guess who's looking forward to going to visit the in-laws for Christmas even more than usual after this experience?

I'm guessing he was fine with the visit because it honestly wasn't that different than our normal routine. He got passed around to a few more people, but other than that... he goes out of the house with me more or less every day and I wore him almost as frequently as I normally do, so no change there.