Very comfortable as it's one of the only packs that has stretchy straps and materials to really conform to your body. Pretty minimalist-y as it feels small and sits high. Hose from insulated hydration actually sits right near your mouth which is great. Overall I like it. I like having 2 vs. 3L as water will move around less, then you can always add a bottle.
Other racks I looked at are ridiculously overbuilt, heavy, a pain to load. This one is super light and you put it on/take it off in 15 seconds. Also folds up fairly well for storage. If your car doesn't have a hitch, get one installed and get this, worth it.
I've had this for a couple years and like it, but the strap mount is a pain, so I likely wouldn't buy again or recommend this. Maybe there's a way to adapt the strap mount to some sort of quick release mount (twist action like a quad lock)? If anyone know of a way to do this please let me know.