I've never had a problem at all with aluminium wiring, it's used for larger loads here like sub-mains and the like.
And provided you use the correct crimp connectors and the right crimp tool, there should never be an issue with them.
Half the problem I believe is when aluminium conductors get terminated under screws and in tunnel terminals, which is not what should be happening.
Because aluminium is such a ductile metal, the individual strands will "flow" away from the tensioning force on the screw that terminates it.
Any aluminium conductor should be terminated in the proper Al/Cu crimp connector with either a fork or an eyelet on it before terminating it where it needs to be connected.
