Fittings serves its purpose perfectly. Water volume and temperature can be easily adjusted to a desired level. Once set amount of water and temperature are stable. If subsequently the amount of water changed, there is no unpleasant rashes in the water temperature. The valve controls very quickly. For the amount of water two intervals are very easy to adjust. Full and an intermediate position. The non-adjustable mechanically preset channel step for a smaller amount of water is good and useful elected. The amount of water is enough to perfect for me from pleasant to take a shower.
Since the constant readjust and adjusting the water temperature falls away I can well imagine that the water consumption slightly decreases. Whether that is really noticeable on the bill remains to be seen.
The only blemish in charge of 1 star deduction. The caps are set with which temperature and water flow are made of chromed plastic. This may have practical reasons (keyword: Hot metal parts), but I had expected a full-metal valve. Overall, the fitting still makes but an impression of quality and is worth your money. This is of course subject to appropriate life and durability of the plastic parts. Here, if problems arise, I will add a response accordingly.
Conclusion: Perfect shower experience at a reasonable price ...