Sonoya is not the greatest ramen restaurant but also not the worst. Overall it's another choice among all the others at First Markham Place. I've been here a few times and I've stuck with the Tomato Ramen.
The Tomato Ramen is made up of a tomato broth and includes tomatoes, minced beef, cheese and some veggies. The broth is pretty good, it's not overly salty and fairly light. I wouldn't consider the noodles to really be ramen but that's not to say it's bad.
Also recently tried the Okonomiyaki. While it's nice they serve it as not many restaurants do, it's quite forgettable. Decently sized portion but the texture was pretty mushy. Flavor was OK.
Prices range from $9 to $13 for a bowl of ramen which is pretty standard. Sonoya is worth a try; it just might not be a first choice when you're at First Markham.