Finally found the Lounge Express!
So upon check-in at Transborder, priority desk, she did not know where it was.
Walked to Tim's as I needed (not wanted) but needed a Tim's. I asked the uniformed Air Canada employee in front of me if she was a YYZ gate agent, she said yes. I asked where the new MLL lounge was and she has no idea what I was saying.
I called the concierge desk to ask as we walked back, she told me it was just past security.....that is the main MLL, never mind I will look for it.
Walked and found it!
It's a nice quaint area, quiet. There are three customers and three employees at the moment, they are helpful and polite.