i have it an so do many people on here... its better then play sand cleaner out of the bag.. an i like the texture.. i recomend getting the longest siphon tube you can find for your siphon an you shouldnt have an issue. if you see the sand getting to the top of the siphon then pull up an let it fall down
In my experience, it's a lot cleaner than having gravel since the waste doesn't sink through the crevices of gravels, but just stay on top. When you siphon, just hover 2, 3 inches above the sand and sort of stir the water. It will create movement and the waste will float up thus will be suck away.
I use it on my 36g bowfront, 55, 75, and 220. I used to use gravel, once you use PFS you will never look back. I suggest Leslies brand if u can find it. By far the cleanest brand I have found. As far as getting sucked up during WC's...I use a python, and even with the water on making more suction than gravity alone, the sand makes it almost to the top of the syphon tube then because its so heavy it just falls back down slowly and I don't lose any. HTH