No long term experience at all.
My closest dive shop is an hour away and charges quite a bit for fills. Now add the current cost of gas and each fill is about $45. The compressor made more sense to me, so I ordered it.
It's a lot of cash but mine arrived in perfect shape, I got the vertical, electric with auto stop and like that it's on the handy wheeled chassis. It's easy to move around and tuck against a wall when not in use.
It runs nice and smoothly and considering it's a compressor, quietly too.
I'm glad I got the auto stop, as it's nice to set it up, start it and be able to stand well clear of it while it does its thing.
Now I just a few spare Scott bottles and regulators for air tools and I'll have spare air for tools and filling tires now that I have the compressor.