We have a Sea to Summitt chamber, it is made in France, and although the first models of this chamber had problems (5 or so years ago), the company stood behind their product and either replaced or repaired. There have been no problems with it in recent years. Oxyhealth would not upgrade to a 1.5 ATA, also we are not commercial, so the chamber is not being used multiple times/day.
Regarding our son's treatment, he started HBOT and LDN in August 2009 at a clinic at 2.0 ata (this is considered a deep dive and is the most beneficial for wound healing). We stopped treatment in October, Crohn's was in remission and he felt great - fistula was not quite healed, but doing well. In Jan 2010 he started feeling not as well, and by Feb he was definitely having Crohn's type symptoms again. His LDN had been compounded incorrectly and we had that changed, by April he was starting to feel better again. At the end of June 2010 we purchased our HBOT and he did 40 sessions - 2 a day for the first 2 weeks, then 1 a day taking weekends off. It took about 20 sessions for him to feel like he was in remission again. Since then he has done a maintenance regimen of 2 or 3 sessions per week, occasionally taking weeks off due to exams / busy schedule etc.
I'm not sure where you are, but we claimed all expenses associated with hyperbaric on our taxes and just got notified today that it was all accepted. Cronic or deep wound healing is a Health Canada approved use of HBOT so that definitely helped offset SOME of the purchase of the unit. Pretty happy about that!!
Oh and about those Lotto numbers - I'd tell you but. . .