I bought a pair of these in April 2011. As of November 2011 they are no longer usable for me. So they lasted me a total of 7 months.

If you go through your daily walking shoes once to twice per year, then don't bother reading the rest of this review; buy these. They are very comfortable and provide fantastic support for your feet.

If, however, you keep your daily walking shoes for longer than 6 months, then please read on.

First of all, let me expand on the good points:
-- I have never owned a pair of shoes that felt better on the feet. I work downtown and do a fair amount of walking every day. I usually put these on when I am headed to lunch or coming into (or leaving) work every weekday.
-- I have never had any foot aches or other issues with soreness as long as I have worn these. I hadn't been so lucky with any other shoes before this pair, so this was heaven-sent. That is, until...

Now onto the reason I couldn't wear them after only 7 months of use: VELCRO. Each shoe has a single strap on it that goes in through a hole one side and comes back around to fasten at the end via Velcro. After prolonged usage, the fluffy/soft side of the Velcro area starts giving away and the strap begins to lose its grip.

This became very annoying. Slowly, over time, as I'd be walking, the straps would come off (you would hear the signature Velcro ripping sound) and then your shoe would become incredibly loose and uncomfortable. Then eventually, as I neared the 7-month mark, the Velcro would disengage on both shoes as soon as I put them on and stood up. At this point I decided to be done with them and bough a new pair.

Two things about my experience:
1) I contacted Propet's customer support. They said their warranty is for 6-months or 1000 miles (how the heck do they gauge the latter?!), whichever comes first. And it only covers the sole of the shoe, not the strap or any other part. Wonderful. They told me I could "send in a picture of the shoe and file a claim" if I wanted to. Needless to say, I didn't bother. Plus, I didn't really want another pair of the same shoe. The issue is in its design, not some sort of quality measure that was overlooked in just my pair.

2) The shoe itself was VERY nice and comfortable. That's why to replace it, I did buy another Propet shoe model (Propet Men's M3851). This one is a slip-on and does not have laces or velcro. So I am hoping it lasts longer. I will review it at the 6-7 month mark just to be sure though.

So in other words, if you can spend a little more, get some other pair of walking shoes. I do recommend the Propet brand in itself (they specialize in walking shoes after all) and their other models. Get a model that either has laces or is a slip-on.

And if you don't want to spend more, then I am guessing you don't want shoes you'll have to replace in 6 months' time either. In that case, avoid these!