This air horn any good?

[deathshead67]

Is this air horn any good? I was looking at hornblasters.com but came across this one .Does anyone know if its loud and reliable? http://www.somo.com/H2-Air-Horns-p/rw502-1-a0102.htm

[WHOSNEXT]

I HAVE 1 AND WORKS GOOD....THE COMPRESSER IS REAL LOAD