Nope, never used Pat's because I went out as soon as we got a tractor and bought a HF QH, and it has worked so well we never looked back.
This always ends up like a lot of other topics on TBN, where people either love what they have and are using; or they had a negative experience and end up hating it and then become rabidly in favor of whatever they buy afterwards to replace it, and then again there are some people just aren't capable of being satisfied.
There are numerous threads on the Pat's EC vs the QH flavor of the day, vs whatever other makes there are, I know because I read most of them and even took part in some of them.