I have a pair of the exact same model and they are very comfortable. I also recently purchased a pair of Redbacks. Their leather is thicker, so I think they'll take a bit longer to break in. Redbacks do have more cushioning in the sole than my Blundstones.
Worn blundstones for almost 50 years, they would once brake in in ten minutes and feel like a pair of slippers. Ever since they moved off shore the comfort quality has dropped dramatically.