I've had the Biscayne flatware set for over three years and it has held up beautifully.  I don't handwash them.  They go in the dishwasher and I use the Palmolive "Apple Splash" dishwasher soap.  I heard it was best to avoid lemon dishwasher soaps.  I had to order a second set only because my kids lost many pieces and it wasn't worth the money to just buy replacements.