I have regular flash and IR flash cameras. It is funny about the IR, because I have the same thing. The deer look right at the camera when its taking pictures, way more often than with my regular flash cameras. The regular flash doesnt seem to bother the deer. I normally get two or three pics of the same deer just hanging out. Something about the IR flash cameras actually seems to attract the deer's attention, though it doesnt appear to spook them. If I bought another camera, I would probably just get a regular flash camera. My regular flash cameras get better range at night than the IR cameras, but that could also just be a difference in the brands. Perhaps a higher end IR flash camera would be better than the one I have.
The only negative point I have with my IR camera is that its no-flash during day light hours, so during low light at dawn and dusk, a lot of the pictures are lost because of the transition time between no-flash at all and the IR kicking in. I get a lot of either white-out type pictures, or so dark I cant see anything at those times of day. But my IR camera is a Wildgame Innovations camera. Its a less expensive camera, so I dont know if that has something to do with the occasional poor picture quality. Otherwise, when it takes a decent picture, I have no complaints, which is most of the time.
Ive heard good things about the Bushnell camera. I have a friend that has one and he loves it.
I also use the Moultrie D40, I have two of those, they are regular flash. I have had good luck with them. Sometimes the deer are blurry from moving. Im not sure what causes that. But I have had them for a couple years and they work good. Other than some blurry pictures now and then, they have worked good. I get good battery life and the trigger speed has been average.
I am yet to hear bad things about Cuddebacks. They are more expensive, but it sounds like its worth the investment. I think if you wanted to feel sure about getting something good, you could feel confident buying a cuddeback.