I have a Condor Altaros regulator that has worked well enough. Had one gauge failure that caused a leakdown and no response from Altaros on a replacement but Talon Tunes had some of the gauges so I could get a replacement. I have also used a PCPTUNES regulator for almost two years with no issues. Some don't like them, questioning their build quality but mine has been trouble free and I always get quick responses and shipment from them on anything ordered. They have lots of AirForce stuff. I will be ordering future regulators as needed from PCPTUNES but probably not from Altaros.