I am partial to Poseidon and Scubapro -- companies who have been around for decades; whose customer support well exceeds the length of the average marriage; and whose products are certainly not crap.
You may pay a bit extra, at the outset (The Poseidon Jetstream Mk3, for example, is currently about US 600.00, through a Texas vender); but they are well worth it for their longevity; that is, unless you're an absolute "gear-head," as a great many seemingly are, on SB, who deem to replace everything within six months.
I just serviced a thirty year old Poseidon Odin (Jetstream), which is still in constant use, whose only replacement parts, were some minor consumables -- the seat; a sintered filter; and a few o-rings. It still has its original piston and valve insert, from 1991; and its IP locks-up like nobody's business . . .