Genuine Husqvarna Parts vs. Aftermarket Parts

[Nicholas]

I have found a nice Husqvarna 272xp chainsaw that requires replacement of the top end components; cylinder, piston, rings, gasket, etc. Here's my question, is it better for a person to invest in genuine Husqvarna parts to rebuild the saw? or are aftermarket parts just as good, and equal in quallity?

Thank you,

Nick Gajewski