There is nothing to dislike. I have gone through 2 other makes and they constantly stopped working and I had to keep adjusting the screw top to stop the water flow and only allow air. There is no adjustment on this one. I have an air problem as each time the pump starts and prims it pulls in air bubbles. You can feel all the air in the top of my filter blow out the air and stops with no water leaking out. The others always allowed water to run until I think the cotton absorbed water and expanded and then plugged up. The next time the pump started up and if the cotton was still wet, it did not allow air to escape and then my pump would not up any pressure until I manualy unscrewed the cap and let out air and the turned the cap down to stop the water from running out. This one you can install it and forget it. Worked every time.