Hey Josh,
I just recently picked up a set of the dresser bars and pegs. I highly recommend the adjustable set as they can be highly customized. For example, I am 5'11 but with short legs, I am not able to get my feet out far enough to rest on the pegs that are not adjustable. With the adjustable ones, I was able to install them facing towards me, and then I adjusted the height for what I consider comfortable. I would of been really upset if I got the non adjustable pair. They do add a little width, but they are worth it.
The quality of the pegs and mounting equipment is just amazing. You will be quite happy with them!
Welcome to the club