So you went to another forum to find information and based your usage on that? I'm ok with it, as that's what happens here. I'd say there isn't more experience on that forum than there is here.
I'll say this though. There are way more reasons to use it than not. I also use an ME Wagner PCV valve and AFAIK I was the first here to actually promote the use of them. And I got killed because the "cost" was outrageous when you can go to the local parts store and get a junk one that isn't adjustable.
Same with Evans. The cost is a killer. The fact you can't add water is another, although you CAN add water in an emergency you just waste a load of coolant and you need to buy the kit to get the water out of the system when you fix the issues.
The **** works. It removes heat better. It never needs changing. It requires ZERO pressure in the system and that right there was the number ONE selling point of the ****. Pressure in a cooling system is an issue. It's hard on the core plugs, hose clamps, and the hoses themselves.
There are more reasons to use it than not. Unless you are just cheap.