You're at Asteria because you like really good, simply prepared food. You're not here because you're looking for superlative service.
Seat yourself, get someone's attention, order your food, get your food, dive in, enjoy! The souvlakis are consistently good, dips are among the best on the Danforth, salads are basic and fresh.
Good luck trying to get your coffee topped up, or a glass of water, or the bill, but again you're there for the food, not for the service.
Order everything you can imagine needing through the meal when you get the wait staff to your table. You'll likely only get one run at this, unless you're immediate family.
Bathrooms - Danforth classic - down nasty crooked stairs - not disgusting, but don't go down unless there's no other option.
If the chicken souvlaki wasn't so good, this would be a 2, not a 4. Yes. That's how bad the service is.