Like others here, we found the faucet with great reviews, purchased, and were pleased for the first few years. However, this will now be our 3rd replacement cartridge in about a two year span.  At $34 each, that's just too much to be paying for a part that seems to have a design flaw.  Will be considering other brands in the future.

Also, it is very difficult to dial in a mixture of temperatures with this cartridge (like using with your baby).  You have to spend 2 minutes adjusting the handle to get anything other than all cold or all hot water.