This place is amazing!!! I have had the opportunity to go to both the location in Kitchener and Waterloo and both are good but the staff at the Waterloo location amazing.

The food is great - service quick and friendly. The Waterloo location is a lot more open than Kitchener so it doesn't feel as tiny.

I came here once, and despite hearing a lot of raves about it, I didn't really care for the food. The pasta was only average, nothing I haven't had before. Though the staff was nice towards us, I didn't really feel full after eating, and there was no taste that was in any way memorable.
In general, if you are having a pasta craving, and happen to be in Kitchener, okay, try it out. But there are better places for better tasting pasta. This is merely one of those "im really craving it, so I'll go to the most convenient location" restaurants to me.
Despite what I said, many people have loved this restaurant, saying they haven't had any other pasta dish that was better than Ennios, Maybe it's just me?