This is our second hydrology, the other one still works. When we saw there was a combo offer for all three for $219 we grabbed it, however we were charged more at checkout, was a bit disappointed about that. Love the black leather case though we can tell them apart. Also really happy about some of the upgrades, like the small seal, close to the top that was notorious for getting rubbed out of place by the case, always so nervous it would break. Not anymore thanks guys, wish both my hydrology were the same. The power button is also much better, and I feel like you getting more air through as well. Well done guys for always making improvements 👍 This is our second atomic9 as well, the first ones hinge first broke, then the magnet also broke out. We haven't tried the new one yet, hope the lid has been upgraded to be completely removable rather than a hinge, the hinge makes it really hard to clean and refill. 😉