I come here at least 10 times a year. After going to stadiums in New York, Cleveland and Baltimore, Rogers Centre is a little sterile with the concrete but it's not bad for a baseball stadium. Sight lines are decent, though the 500s are a bit high. It's best to stay near the infield if possible as some parts closer to the outfield will have part of the field obstructed.
It's about 10 minutes walk from Union Station which ample parking all around so it's pretty easy to get to.
Food prices are outrageous, but you can bring in outside food and drink - so many people don't seem to know this! Just don't bring in glass bottles, cans and outside alcohol. The food inside isn't great. Beer is at least $10, I don't like buying it in general cause it's often not cold enough.
The Blue Jays are playing like garbage right now, so you can find plenty of cheap tickets on the secondary market, so don't pay the inflated box office prices to see them.