I think security is of critical importance, people need to feel as safe as possible giving you their BTC. I've come across random people here on the forum offering escrow service without any rep and there is no info about who they are. I mean seriously who in their right mind would give their BTC to a complete stranger who's got "Free Escrow Service" as their signature
Also you need to be available at times when you're supposed to be available, there's nothing more traumatizing than waiting past the scheduled time for your escrow to come online. Good luck!