No

with less wear and tear on your clothes

Yes, but then they're still dirtier.

using less water

Yes

In other words, they're so gentle they barely clean lightly-soiled clothes, and that's why they also use much less water; forget about heavy soiling or thicker textiles. For true cleaning, you need a top-loader that submerges them in detergent water and actually forces it through the materials with an agitator.