Well I bought a Mares Abyss from their site. After I received it, it was fine for about 20 dives or so before the pressure spring went. So I called their service department - and after being on hold for about 20 mins (long distance) I finally got a person. From there I explained the problem - to which the "service" guy told me there was no-way this could be. So after debating for about another 20mins (long distance) I told him I would get back to him. From there I went to my LDS and gave the reg to my friend whi is also an instructor and certified to repair regulators. He took a look at it and called me to tell me that it was exactly that and the spring was faulty and LP should honor their warranty to fix it. Next step I called again - (another 20 mins) - and this time told the guy what my friend had said. The "service guy next asked for the number to call him at the LDS, which I gave. So thereafter, my friend calls me and says he just spoke with the guy and had a lengthy debate over the reg. Now I was to call the guy back a 3rd time and another long hold time - finally after some more debating, the "service" guy tells me all the things I need to send to have them look at it - and if in THEIR findings it is faulty then I will only be charged the shipping cost to send it there. So after about 2 1/2 weeks and I hear nothing, I call to find out. They STILL have not serviced it. Now I argue to get a manager, which I finally get after another lengthy hold time - where he apologizes and says that it will be taken care of immediately. So I finally got my reg back after another 10 days - wher it held for about 15 more dives and the same thing happened. I gave up - sold it for $100 and went to my LDS and got a new reg.
NIGHTMARE is all I can say.