I had an ATN and was not happy with it, battery life was terrible. ATN support is spotty so I sold mine. Iray and Berring optics make good thermals. Hogster is very popular with the hog hunters here in Texas and the newer Super Yoter is a full 640. I almost bought the Yoter seeing as its made
in Texas and uses a LaRue Tactical QD mount I backed out when I discovered that the internal chipsets were from China and the same chinese internals were in the IRay. I wanted to go 100% American but could not afford Trigicon or N-vision. Rather than help the Chinese military develop thermal optics that could be used against Americans in the future. I maxed out my budget and bought Pulsar which is based in Lithuania.
I have the new Thermion 2 Pro LRF 640 res, base mag is 2x and will go up to 16x. Here are 2 images of the same feral cat at base 2x and at 8x. Cat is 40yds out. Image from through the viewfinder is way way better than this screenshot
I have the ATN Thor LT and for the money, I am satisfied. Traded in one of their night scopes for it as the night vision weighed a ton. Tough to sight in, the one shot zero took me a while to figure out. I have a FLIR monocular and the image of the ATN is comparable. Weight is more than a scope but you would expect that. I don't have any issues with the battery but I typically glass the area with the FLIR and only turn on the scope when considering a shot. I would not recommend the 2-4X beyond 100 yards though, tough to find a target for my old eyes.