I've been through tunnels all along the I-95 megaopolis in the NE and the Chesapeke Bay Bridge Tunnel system, and it was a nice experience as we don't have tunnels down here. 
Be REAL happy you don't have tunnels. We have about 4 that connect hundreds of thousands of people each day. They back up sooooo bad. Its outrageous and the worst bottleneck of traffic in the area.
Yup, same here. The only way to get out of the city from the east is through the Squirrel Hill Tunnel on I-376, from the west you have the Ft. Pitt Tunnels on I-279/US-22/30, and from the south the Liberty Tubes on PA-51. You're talking about hours of traffic during rush hour...