I have the "unlimited" version of Priority Pass. One annual fee, unlimited use, no per visit fees. If you sign up for a plan with the (now) $27.00 fee, that fee is payable per lounge visit. So if you use a lounge at your airport in LAX prior to departing, it's $27.00. If you use a lounge at your 2 hour layover in ORD, another $27.00.
That said, I'm on my second year of it and like it quite a bit. I'm *G also but can't use that status to access lounges on U.S. domestic travel so I use Priority Pass. I have noticed no "attitude" whatsoever when using this card.
As for the "inconvenience" factor....guess that depends upon the person. I've read here that lounges at ORD and IAD were "too far away". Took me 10 mins to get to each from my departure gate (IAD I took a 2 min shuttle, then walked 5-6 mins.) I consider that a nice walk, not inconvenient.