The change of water down into the tub and oh up in the shower hose was previously a lively affair. The Grohe faucet has no problems with the switch. It works in a nutshell. In addition, the device is a stunner. Matt and shiny with easy walking mechanics, it is an excellent fitting .. Only superlatives for this low price. It's the reason that I bought such a Grohe marvel for the basin. Others will follow, because after 30 years of use, the veteran fittings are really at the end --- although they still work. The very stiff. I am satisfied with the purchases from Amazon, especially since I have been shown some saved money, compared to buying the dealer lot and at the hardware store still something. But since I have to drive to go somewhere.
