I have had them for about 1 month. I have used them about once each week and so far are sturdy and very easy to change weights. They are just slightly bulky when using them but not to the point of being a deal breaker. By far the best pro is number of weights they replace and small space they take up. I'll be adding a Bowflex bench soon. Highly recommend for someone who wants a good weight set for a reasonable price.
Pros: Comfortable, Durable, Easy Storage, Easy To Set Up, Easy To Use, Quiet, Strengthens
Lvoe theses dumbbells. They've added so much versatility to my workouts. The ease of switching weights is definitely a plus. Only negative is that they can be a bit bulky if you're lifting 10 or 15 lbs.
Pros: Durable, Easy Storage, Easy To Set Up, Easy To Use, Quiet