I have used these boots for a full season, about 100 days of skiing and touring and they have held up well. The things I have had break on me have been the ski/walk mode switch which was promptly warranted it helps to live near BD. The other thing that broke was the boa tension knob I think it broke with a direct hit to the knob, again helps to live near BD. The buckles are laid out well and are well made as is the scuff guard on the inside fore foot. The soles also held up well to a lot of walking and scrambling. My biggest gripes have been they are the coldest boots I have ever owned painfully so, and I am disappointed with the cant of the cuff I tend to ski with knees together I have Canted the cuffs all the way to the inside but when you put them together the cuffs still cant to the outside, it has made it difficult to ski in a tele stance because I am unable to effectively use my up hill skis outer edge. The Fit has been alright but it is still too wide in the ankle and too narrow in the fore foot for me. Really my gripes come down to fit but the biggest is how cold they are other folks I know who own them complain also about how cold they are. But if they fit you well then it is a good boot that will probably get better.