There are definitely many places to grab a bite at super late/early hours on the strip, but I give props to EoS for being good quality stuff at a decently low price. I tried a couple of the sandwiches and both were excellent - gooey, fresh-tasting, and yummy bread. The location isn't bad - inside PH, which is close to the middle of the strip.
While it doesn't have quite the same Vegas feel as a $6 plate of steak and eggs, you can at least be assured you're getting some quality food for your buck. If only the closest one to me wasn't Detroit, I'd totally consider this a great lunch spot.