I've had my dining set for 2 months now and have been noticing tiny little piles of wood dust in random areas underneath the table and it turns out they're powder post beetles emerging from the wood (I caught one coming out, see photo). After some research, I've learned that the beetles lay eggs in the wood and when they mature to an adult, they drill they're way out, which creates these tiny round holes. Needless to say this has freaked me out!!! The adult bugs move on to something else they can eat, which better not be my hardwood floors!!! Buyer beware!!! 

Pros: Nice table, beautifully distressed
Cons: Live bugs!