In response to the OP, Poseidon has been around since 1958; and they're here to stay.
I have used every model produced since the mid-1970s -- and use nothing else, given the varied and extreme circumstances, that they have put through, without failure, over four decades, from ice to the tropics. I am currently overhauling both a Cyklon 300 that has seen thousands of dives (as well as being my first regulator), along with an Odin (Jetstream in Europe), from thirty years back.
They breathe like a dream, if you know what you are doing. Provided that they are well-tuned, they are no "louder" than any other brand; they don't "blow" air at you, as some still care to claim, if the IP is actually set to specs; they remain dry in any position in the water; and parts, as others have already said, are now far simpler to obtain, than ever before, even on the retail market. Try purchasing a ScubaPro service kit.
Back when they were distributed by Parkway, years ago, obtaining anything was a colossal pain in the arse; and recycling parts was often the rule of the day. I had a diaphragm that lasted five or more years, flipped like a flapjack with each servicing; and that issue of jaw fatigue, as someone previously mentioned, has never once posed an issue.
Despite the ongoing rumor mill, hoses have long been standardized and sundry adaptors are readily available, even for decades-old models.
Even the Cyklon 300s are still quite popular, on the secondary market, parts being readily available, though had been discontinued since 1993; we have a drawer full, and often use them for simple diving as well as stage or pony bottles. They were bulletproof; dirt-simple to maintain and the 2305 model only possessed three o-rings in their first stages. The rest were semi-permanent nylon gaskets, some of which haven't required replacement since Clinton and a particular blue dress.
In terms of price, they are, admittedly, on the more expensive side, though holiday sales still abound (I picked up a Jetstream MK3 for US 600.00 last year, for my niece; she loves it); but some ScubaPro models exceed their prices.
Techs have always posed an issue with diving, not simply with Poseidon; hence the thriving DIY community here -- all hail @rsingler. Typically, the only training most receive, regardless of brand, is a brief seminar at a Sheraton conference room, typically without any requirement to actually tune anything . . .
I have used every model produced since the mid-1970s -- and use nothing else, given the varied and extreme circumstances, that they have put through, without failure, over four decades, from ice to the tropics. I am currently overhauling both a Cyklon 300 that has seen thousands of dives (as well as being my first regulator), along with an Odin (Jetstream in Europe), from thirty years back.
They breathe like a dream, if you know what you are doing. Provided that they are well-tuned, they are no "louder" than any other brand; they don't "blow" air at you, as some still care to claim, if the IP is actually set to specs; they remain dry in any position in the water; and parts, as others have already said, are now far simpler to obtain, than ever before, even on the retail market. Try purchasing a ScubaPro service kit.
Back when they were distributed by Parkway, years ago, obtaining anything was a colossal pain in the arse; and recycling parts was often the rule of the day. I had a diaphragm that lasted five or more years, flipped like a flapjack with each servicing; and that issue of jaw fatigue, as someone previously mentioned, has never once posed an issue.
Despite the ongoing rumor mill, hoses have long been standardized and sundry adaptors are readily available, even for decades-old models.
Even the Cyklon 300s are still quite popular, on the secondary market, parts being readily available, though had been discontinued since 1993; we have a drawer full, and often use them for simple diving as well as stage or pony bottles. They were bulletproof; dirt-simple to maintain and the 2305 model only possessed three o-rings in their first stages. The rest were semi-permanent nylon gaskets, some of which haven't required replacement since Clinton and a particular blue dress.
In terms of price, they are, admittedly, on the more expensive side, though holiday sales still abound (I picked up a Jetstream MK3 for US 600.00 last year, for my niece; she loves it); but some ScubaPro models exceed their prices.
Techs have always posed an issue with diving, not simply with Poseidon; hence the thriving DIY community here -- all hail @rsingler. Typically, the only training most receive, regardless of brand, is a brief seminar at a Sheraton conference room, typically without any requirement to actually tune anything . . .
