I have multiple OBA setups. I have a Kleinn 100% duty rating all-in-one pump/tank unit in my LJ, a Powertank and I converted the 4.0L A/C compressor in the Postal.
The power tank is portable and fast, but it's a 20 min drive one way to fill and I apparently help too many people with air and use it too often at home (so much faster than firing up my large home depot special compressor) because I always feel like it needs a refill. Last time I took it, they wouldn't fill it without going through a recertification test due to its age, which would have required leaving it for a week and more money than I wanted to spend to keep using it at that moment (I go to a fire extinguisher place). I have had issues with the OBA on the Postal and it was a nice backup to have. I got in the habit of bringing it in the postal for bigger events because the mount was up out of the way and it was easier to grab to help someone than trying to get the Postal next to them. I got mine with a discount certificate from the SOA National but I don't know that I'd spend the money on one at full price with the costs of fills.
The Kleinn is nice, but it's the slowest of the options. I like that it simply works when you flip the switch. I tried it last weekend doing a fill on my 37s going from 14psi to 27psi with my IndeFlate unit that fills two tires at the same time and it took an eternity (partialy my fault for not firing it up on the drive out of the park to let it fill the tank). It's easy to mount assuming you have the space and you just need to run power to it and go. If I wheeled the LJ more, I'd plumb air lines to the front and rear similar to what I did with the Postal (see below).
I converted the Sanden in the Postal using the article from JP years ago. No oil supply like the York, so had to disassemble and lube the guts (probably need to redo that). This is by far my favorite of the three. It's ultra fast and I plumbed outputs to the front and rear bumpers and mounted a Viair tank under the bed. With any engine speed, it fills the tank in no time and does great on tires. I'm running it more now that I put the ARBs in the Postal and all of the issues I've had were with my install on the lines/fittings. The only real problem I had getting this system working was getting the high pressure connection at the compressor to take (I had to use a compression fitting on the Sanden's output pipe, which you won't have to deal with).
With my experience, I would 100% do the York if I were you and starting from scratch unless you have a nearby and cheap fill location for the Powertank and really just didn't want to deal with the York. If the York appeals to you at all, go with it. I recommend the tank under the bed with a one-way valve and outlets wherever works for you. If I were doing it over again, I would have put a distribution block near the compressor to start and plug the unused ports just so future additions/expansion was simpler. It took three changes on how I had things set up before I got to that point, I should have done it from the beginning.
FWIW.