I second this. If it was my house or a family member I would use copper for exactly the reasons above.My problem with AL is that is has a high expansion/contraction range due to heat cycling. This can loosen connections. Also, unless it is properly treated, it can oxidize which reduces conductivity and increases heating issues. The only time I'll use AL wiring is the service drop if it's an overhead service and between the meter and the main breaker.