We've been very happy with our water drop pitcher and filters! We can taste the difference between using it and our straight tap water, which has a lot of sediment due to old pipes. Very happy with this product.
Our city water is not pleasant to drink before being filtered in our Waterdrop pitcher. Thanks to the improvement in the quality of the water after filtering, it is not a challenge to drink all the water I need each day, not to mention the improved taste of everything that contains water.
Compared to Zerowater, Waterdrop filtered water is inferior. The taste is average, the ice cubes are cloudy (Zerowater is mostly clear), and the price is about the same. I ended up ordering another Zerowater.