For those who think private jets are all luxurious, I suggest you go see some. That's true only of the larger private jets. The smaller and mid-sized ones are very cramped, and you better not be too shy if you use what they call a lav in them if anyone else is in the cabin.
No, I've never flown in one, but for reasons I still can't understand, I got invited to a sales show years ago. It really made me appreciate spending a few hundred bucks for coach seats and using the upgrade tricks I've learned here on FT.