You have no idea what this means to me. I no longer have to go downstairs under the building or upstairs and over just to get to the other side of the building. We have access to a lift. We can use trolleys to move things instead of carrying things in a million shifts up and down stairs.
I was walking downstairs after coffee to go the tunnel route when someone said "but Po, you can just walk across now. You don't need to go via the basement any more". The awesomeness. The shiny new-paved corridor glistening before me, the road less travelled.
We still lack many things that a normal lab takes for granted, ie. pure water, an autoclave, a cold room, and the builders are still around leaving a trail of turps everywhere. But the drilling has abated somewhat which is a flippin' relief.
The little known pleasures of walking the corridor. You should try it some time.