It's a good phone, I have one. it's actually produced by Bullit, and using CAT liscences. It's pretty good, but some notes:
1) the waterproofing is good, but it makes using the headphones or charging port a pain in the ass while in use. They're both on the same side, which means having it rest comfortably in the pocket is difficult if you have headphones in.
2) The FLIR camera is fine, but not any better than the conventional FLIR ONE they sell for other phones. It's just integrated. I use it occassionally to check insulation, but the resolution is shit, though it pairs with the regular camera (which is also shit) to improve it, and you can't use it like you would military flir.
3) It's overbuilt on purpose. it's fucking heavy. But it's sturdy.
4) Battery life is better than iPhone, worse than most Samsungs.
5) Dual sim is good, as is expandable SD storage. Weird door thing to these ports makes for a good kickstand.
6) Flipping the '15m waterproof' toggles means you can't hear anything. The phone is basically unusable for its intended purpose, but it is safer if you boat or something.
7) the screen works when wet cause it has a pressure sensor as well has an electric one.
8) comes with a suite of 'survival' type shit on it. true GPS, barometer, etc. Not particularly useful, and AWFUL if you want to be 'off the grid' but nice for casual camping.
9) The only ruggedized phone I've seen that operates And6.0. Patches pretty regularly, but it is starting to slow a bit as the patch bloat affects it.
10) Actual hardware is... meh. Not bad, by any stretch, but not fantastic or fast. You won't be able to play decent games, if that matters. It's really a tool suite, not an entertainment device.
I would buy another if mine broke. Except that they're probably overpriced for what they really are. The FLIR really isn't worth it, if that's something you're looking for, but it's a nice feature if it's just a convenience item for you.