The nice thing about these micro compressors is that they are so quiet that having them running constantly is no big deal in terms of noise. You could paint indoors and not wake the person in the next room.
That looks like a good unit, same size/features as the one I have except half the price.
I have that compressor and it is awesome. Very quiet and has a real nice flow no pulsating that is . I have had mine for about 4 yrs and havent had a single problem with it.