Pros: attractive, comfortable grip, washes well, easy/strong locking function (When compared to the ones with nylon bottom, the locking function in these tongs are made of stainless steel, it feels stronger and more sturdy. The ones with the nylon bottoms however, are made of plastic, it often gets stuck and takes a few attempts to unlock.) 
Cons: can scratch cooking surfaces
Overall thoughts: good, useful cooking utensil. These have a better or stronger grip when compared to the ones with nylon coating on the bottom especially when flipping over certain food items, meat specifically. I personally would prefer 12” over 9” for cooking ( to keep some distance from heat). I thought the 9” was not long enough and would probably use it more for serving.