I just got one of the ARB CKMA 12V compressors. Went out on Monday. In the time it took one persons TJM compressor to fill their tyres, I had done mine, and almost finished 2 other vehicles!
(Probably would have finished them if I had realised just how much drain the thing took. I hadn't left the engine running & had flattened my battery! Still, I carry jumper leads, so no problem.
)
I found a good 'temporary' spot for it in the winch spot of my DBOR front bar!