One of the greatest pros, for many guitarists, especially beginners (or those who are mainly singers and want to accompany their singing), is the fact that using a capo allows you to play more songs with less chords.
If you can learn just 5 chords, be able to change back and forth between them, you can play 1000s of songs when you use our trusty old friend—the capo.
Also, using a capo is a wonderful tool for changing keys to suit a singer’s voice. If you are taking a song that is in totally the wrong key for a singer, you can put a capo on to make it higher, or if there is already a capo on, move it higher or even move it lower if the song is too high for the singer.
One more benefit of using a capo is that it supplies a different timbre and can open up more tonal possibilities to your music. It is always a handy and fun complement to any guitarist's toolkit.