Tim Hortons review: coffee

The staff at this location are excellent. I work in the building and have been going here for years. The thing is, for several months the coffee has been extremely weak and watery. I have to get an espresso shot in it so it actually tastes like coffee. Can someone please ask them to fix this? It's literally the worst coffee I've ever had. I'd like to keep coming to this location as its convenient but I'm getting tired of the poor quality coffee.