At first one of the boots was very uncomfortable on my big toe, but my feet have a big variance in length so I expected this. After they've worn in a bit (only took a few sessions in warm weather, maybe that's the split sole making it happen quicker) the flex makes them surprisingly comfortable for standing and walking in between climbs but the still feel solid when on the rock. They are a little trickier to get on than my last boots but that makes them feel more stable and give a snugger fit ince on. My one issue is that the heel cup seems overly large and sags a bit in my foot but I think that's just how Scarpa design their boots and would suit a different foot shape better. I bought these on sale and am very happy with them for the price however if they had been full price I probably would have gone for a different brand and tried more models before buying.