I was on the search for a lightweight aluminum crampon for my non-crampon-compatible boots. For the money these are the best in my opinion. They strap on super easy, cinch securely, and come off easy. I think the second points are a bit over-aggressive, as they are NOT for mixed or vertical climbing, but they do look really cool.
One thing to note, they tabs are fairly narrow. I had to do some creative filing on my LaSportiva mountaineering boots to get them to fit easily, but it was minor and only took a few minutes.

I recently purchased these crampons for glacier travel in Bugaboo national park in British Columbia. They are extremely light weight and very durable. I was walking on everything from slushy snow, to packed ice, to rocky moraines. The color coating is pretty beat up but the overall structure never bent and I was pretty rough on them. I found them easy to adjust and easy to get on and not once did I have them loosen up on me. I would recommend these crampons to anyone looking for something simple to go over any boot for any glacier travel.

Recently, I purchased these crampons for my wife. The snow gorge freezes in the morning even in the summer time (Japan). These crampons are fitted well for my wifes shoes and very light. I also cut the size adjustable sticks and belts a little shorter, and these came -18 gram weight loss. Thinking about safety, these crampons are excelent.

I went to St. Mary's Glacier July 12th and these made all the difference. even though the snow was slushy and hard underneath, I never slipped or fell with these. Everyone else was struggling getting up the slush and me and my friend just went straight up no problem. Never felt unsafe or that I was going to go sliding down. I felt less fatigued because I did not need to kick my toes in really hard to kept from sliding. These were really easy to put on my snowboard boots. They adjusted small enough for my women's 6.5 boots. With room to go smaller. I tested them with my running shoes and they fit women's 8 running shoes and even my 7.5 skate shoes. They were really easy to put on and take off. I would recommend these for snowboarders and people who need a little extra support on snow and ice in normal style shoes.