I bought my shoes in November and have now done around 15 runs between half and one hour on trails through rolling hills. I'm VERY happy with these shoes! In terms of quality, they are holding up great. No noticeable signs of wear in particular. The comments made by C. CALVEZ about poor quality are the opposite of my experience with the shoes. The tread on the soles grip the dirt well. I haven't had any problems slipping on the moderately step trails I run on even when it's raining. The shoes are very comfortable. All around I'm very happy with these shoes and will replace them with the same when my current pair eventually wears out. And THANK YOU Merrell for making such great shoes in large sizes (50 in my case)! Please continue.