I've been here multiple times and it's usually pretty good. Great value, great taste and texture, so-so never really smiling service. This is a no frills burger joint that often gets it right.
Today's burgers were a bit disappointing and I remember it being usually better. For under $10 including tax, we got a cheese burger, hamburger and a chocolate milkshake. The burgers are hefty and feel like a quarter pounder. We took the burgers home before eating them and by then, everything felt a bit mushy and really not so fresh. The chocolate shake was great though!
Aside from the thick, yummy milkshakes (there's strawberry and vanilla too), try the onion rings!
Not sure what the future of Johnny's is as according to the local MPs letter, they're trying to move the place as it's the middle lot of two other lots on either side that have been purchased by a developer. They've offered him a new location with a drive-thru, but Johnny isn't budging.
By the way, parking is limited up front and you can only get to it going northbound on Victoria Park - you'll have to do a U-turn if you're approaching on the southbound lanes.