Has anyone used one of these?

I used the 3/4" versions a few years ago they do work good assuming that they are kept clean the internal gears can jam when crud gets into them and cause them to stop cycling. They also restrict the flow a bit.

I believe they designed the 1" version to be serviceable by taking it apart for cleaning, the 3/4" model was not. That picture looks like the 3/4" version. I would do a google image search if you want to see what the 1" looks like before purchasing.

 

I had a friend who used one and didn't like it

 

I did a lot of research on these awhile back and basically the reviews say they last around a year then quit working that's why I bought oceans motions instead

 

Got a great deal on one NIB $25 but have not plumbed it in yet. Thought I give it a shot, and if it doesn't work it would be easier to add an Oceans Motions.

 

Ocean Motions has padlocked the doors, they are no longer in business.