My mom introduced me to them (thanks mom!) and I have been using mine for a few weeks and it’s looks and works the same as it did from day one. I toss it in the dishwasher every night to sanitize and use it instead of a rag to wipe down counters and the kitchen table. Love it!
You can find them in a variety of places, but King Arthur Flour has the best price (that I’ve found) with free shipping.