The Deuce does offer cheap transportation from Freemont Street to the Vegas Strip, however it is slow. It took nearly 45+ minutes to get from Freemont Street to the Strip. The bus itself is a double decker, and does offer some interesting and unique views of Las Vegas, especially the strip however the ride from Freemont Street to the Strip does take you through some of "rougher" neighborhoods in Vegas. During that time there are a few guests that board and get off the bus.
The Deuce does fulfill a gap in Las Vegas that the Monorail didn't complete, however working together they do provide a taxi free option for visiting Las Vegas, however be advised that you do get what you pay for. While the Monorail is more expensive, its is a better experience, however it does not get you to many places. The Deuce is cheap, and gets you pretty much anywhere up and down the Strip, and back to the Freemont Street area.