Finding a legitimate "extra quality" shop is a quest akin to finding a stronghold without eyes of ender. Here is a strategy guide.
When a shop advertises "extra quality," you should expect the following specifications. Do not settle for less.
If you have spent any time on 9b9t, you know the rhythm. You message a seller, negotiate a price (usually via PayPal or Crypto), and head to a coordinates drop. You open the shulker box, eager to gear up, only to find the dreaded orange bar on your chest plate: Low Durability.
Standard kit shops often operate on high volume and low margins. They mass-produce gear using automated farms or duping exploits (when available). The result? You might get a set of Protection 4 Netherite, but it might be sitting at 20% durability. In a 1.9+ PvP duel, that gear will break in three hits. You are essentially paying for a ticking time bomb.