Purchased an Altaros. I tried using it to fill a SCBA tank - didn't work out. I messed with it an broke it. Altaros sent me new parts and I easily fixed it. Very simple construction and solid engineering went in to it. Altaros people/support were great to work with. I now use it to top off my Taipan Veteran directly. 150 bar to 250 bar. Just 10 minutes. I use my shop compressor to feed the Altaros booster. Very simple and very easy. I've been using it for several months now.
