Although I would never use aluminum, the power companies uses it all the time on there plants. The drop wire to a home is aluminum around here.
One of the biggest drawbacks for aluminum, (in a home) is that you need proper receptacles that will keep pressure on the conductor after multiple thermal cycles.
Also one other thing about wiring, nice and tighty, (hard coroner), are bad! Act like small resistors causing a potential heat point.
To the poster: never go cheap! All receptacles should be of the highest quality, thus reducing the chance of sparking. Also do not use the push in receptacles, the wire has a higher potential for breaking at the point of entry due to thermal movement.
And for heavens sake, do not overload you exiting wiring, make sure it is not 16awg. I would venture to say that 80% to 90% of all household wiring failure is due to overloaded wiring. Be it an undersized extension cord, or load higher than rated for the wiring code of it's time.
I have found that most wiring codes are a MINIMUM! Yes you can exceed rated performance on a wire without "popping" a breaker.
Disclaimer: I'm not a electrician so I don't know crap, consider the above useless dribble!