The catchment extends far further than the immediate local area, particularly given the proximity of the M5/A40 junction.
Allied with the free parking, 50 yard walk from car to aeroplane, never more than 19 pax in the security queue and no ATC delays (except when LACC won't play ball!!), the whole experience is far easier than BHX or BRS, for anyone from North Bristol to Redditch.
The infrastructure isn't really in place for more than 40 seats, but Manx2 have found a niche and are making a damn fine job of exploiting it. Pax up again last month...