Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Very uncomfortable

I've been trying to love these shoes for three weeks now but all I have to show for my effort is a foot full of blisters. I bought them from a very reputable running store where I know all of the employees and I'm quite sure the fit was fine. But hey, you may have a different experience.I've also found that the run itself is alot harder on my knees than the runs I take with my Asics 2090s.Finally, be careful in making your color selection. It's fun to sport the yellow but it's really, really hard to coordinate this color with anything in your wardrobe.