What are the advantages of Friedel Crafts acylation?

Compared to Friedel-Crafts alkylation, Friedel-Crafts acylation has several advantages: better control of the reaction products, while the acyl ions have a positive charge on the carbon, and are resonance stable, so there is no chance of rearrangement. Using Clemens reduction, the ketones obtained can be reduced to alkyl groups.