2011 S60 Alternator

[S60power]

I have a 2011 S60 with a hundred five thousand miles. I love my car awesome. All the sudden my power steering went and all of my lights came on. Low battery came on. Brought it to the shop and they said it's the alternator. Is it best to go with the Bosch alternator? I know they manufacture it for Volvo. In North America comes with a two-year warranty. Also going to run me about $800 is that common? Thank you very much