My personal gear:
I tried the Yaktrax, they were fine for a day trip with crunchy ice, but my terrain switchbacks gets intermittent sun, so long patches of ice mixed with dry gravel. The dry gravel destroys the rubber band holding up the wire springs. $20 set good for 10 mountain miles, then its almost torn and cannot be trusted. Yaktrax are good for walking outside the cabin on flat frozen ground, for short distance.
For mountaineering and steep ice hiking, I have:
Black Diamond Contact Strap, old 2005 model.
instant confidence, when worried that you will fall backwards and fracture your skull on ice glazed rocks.
Con #1: (minor issue) requires some finger details to thread the strap and tighten, which in 25F degrees weather, you are probably wearing giant gloves. so you gotta take off your gloves to work the gear. I wear (fingerless) bicycle gloves underneath the big gloves. I also carry a tiny pocket multi-tool plyers to adjust, because the finger will get numb quickly.
Con #2: you get geared up, tighten the crampons on your boots, zip up your jacket and haul your pack... walk 20 steps and notice that the crampon straps are a bit loose again. You're friends are waiting on you, and now you need to drop you winter pack, take off your gloves again, unzip your puffy coat, and re-tighten the straps one more time. At first it's annoying, but when you plan for a second adjustment, budget time for it, it's not frustrating.
My old set came with a yellow center bar, after the first season, the yellow paint started to chip, so I spray painted it black during the off season.
I think current models are silvery stainless steel. possibly better.
I bought mine at the end of the summer on REI clearance sale, so I paid a quarter of the regular price.
After you buy them, you will need to think about how you will pack them on your back when not in use. There are spike protectors like little rubber condoms, as well as crampon bag. Not UL but durable. you don't want it to puncture your expensive backpack.
Also depends on your terrain, consider an ice axe, for self-arrest during freefall as well as a walking stick. I usually would take 1 trekking pole and 1 ice axe. Know your terrain.