Wait, some say escrow slow?
Why would escrow be slow?
Isn't it just multi-sig?
Escrow mostly means involving a third person that hold the coins from the buyer until the goods were received correctly. Having a person as escrow helps in case of problems coming up so he can ask for information, try to find the truth and negotiate a solution.
It can take a bit because not all persons in the trade are in the forum all the time.