Newbie question on Percona server and Xtrabackup

I just heard about Percona, and saw it’s benchmarks against Mysql, and i’m very impressed.
Following are the things i’d like to do to my VPS -

1.) Upgrade Mysql to Percona server
2.) Use Percona XtraBackup to perform Hot Backups

I found this amazing article on digitalocean to upgrade to Percona -
I’m a little confused in using Xtrabackup on a percona server … are there any tutorials specific to perform Xtrabackup on Percona server, rather than a MySql server?

Your help is greatly appreciated, thanks!