Overall, Sapporo Ramen isn't bad for a quick and cheap lunch place during work, but I don't think I would really recommend it otherwise.
The Chicken Miso Ramen I had wasn't terrible, but the noodles were obviously prepackaged, and the broth was bland, and had no real distinct taste. The Chicken Teriyaki included with the bowl was alright, but not anything memorable. I also had a Spring Roll, and this was comparable to the rest of the meal.
The Service on the other hand, was very good, with the waitresses being very fast and polite, and turnover in the restaurant is very quick, which probably explains the popularity. It is quite rare in Vancouver to find a restaurant where you get quick, efficient and very pleasant service, but it also probably means that a lot of the food is preprepared beforehand.
The value is decent despite the mediocrity of the food, as the bowl of ramen was quite large for $7.50, and the egg-roll was of a larger size as well. If you're looking for a large meal under $10, then this is still a better option than a fast-food place, and probably healthier as well.
Ambiance rates a 2. Nothing really to mention other than the restaurant is surprisingly quiet for the amount of people inside, but they also cram a lot of tables together so there isn't much in the way of privacy.
I would consider coming to Sapporo Ramen again, but it's near the bottom of my list, and I probably won't be back for a long time. It doesn't compare to other Ramen places like Benkei, but at the same time, I don't think they really try to be anything other than a cheap place to eat on a lunch break.