I have ordered them for my son who is used to play them, but I have kept a pair to test them. I usually play the Dunlop shell classic ones "heavy". We both use them to play electric guitars.
The "powder coating" ensures a pleasant grip even if it kind of wear off quickly. But when it does the surface remains rough enough not to become slippy.
They are as rigid at the shell classics heavy, a bit more thick and a little smaller but frankly I had not noticed that before doing a side by side comparison. While playing they both feel the same to me and sound great.
In terms of durability they do get used after a while as any others, not more not less... but you will have been playing a year before you get to the last one in pack.
Cheery on the cake, the Alligator logo brings you plenty of mojo ;-)