In a bath two Talis S were built by me, in the other two mixers a store brand of a large DIY chain.
I can after prolonged use on the product say the following: The Hansgrohe mixer function properly and completely silent. They are supplied with all necessary accessories and are wertig in optics and handling.
Price / performance ratio is absolutely right here. The mixer from the hardware store I bought under time pressure (mis). Here the Geräuschkullisse (whistling) is unbearably loud (especially in "middle position").
The prices at Amazon there can only be one thing - everything from Hansgrohe order to "comparable" prices of DIY goods (because that was not expensive!). I myself will soon be the DIY mixers from Hansgrohe fittings exchange.