I bought one a while back and for what it is worth my experiences went along these lines:
It came down to what the priorities are. In my case I was looking to watch sika on trails in relatively dense forestry and so I decided that a fast trigger time would be important to me and that pointed me at either the 2012 model year Bushnell or Reconyx. Reconyx are very expensive so that ruled them out.
As most photos seemed likely to be taken at night or in low light under canopy I also wanted decent flash range and this is often incompatible with so called "black flash." Many cameras use near infra-red and if you look closely when they trigger you can often see a red glow around the LEDs while other cameras use so called "black flash" which is further down the infra-red spectrum and so should be completely invisible to humans and deer. I wasn't too fussed about being totally invisible plus "black flash" also usually means more cash so I went with a near infra-red camera on the basis of lower cost and longer flash range. What I can tell you is that deer can easily see it and it does spook them. Now, sika are exceptionally wary deer and so it may not be a big issue with other deer but some sika will run from it while others will at the very least get a shock and become very cautious.
So, you need to consider what your priorities might be. Here are some example photos from my camera with some comments. Hopefully these might give you some idea as to what your priorities are and that, in turn, will lead you to a decision based on what cameras meet your demands:
This shows the fast trigger time, I was walking as fast as possible and as you can see the camera triggered just after I entered the frame:
Again another example of why a fast trigger speed is useful. The camera is set to take a burst of 3 shots and this works well. This is a "transition" time photo taken when the camera has decided it is night time even when there is still a lot of ambient light about, some cameras give a total white out effect under these conditions but if you use the camera in forestry then you may find that it operates under "transition" levels of light for much of the day especially in winter:
There is a deer in this photo, this shows the benefit of a good quality sensing system. From what I can establish many cameras don't have great sensing systems and so miss a lot of potential triggers - when you check the memory card you only see what they caught and don't get to see what they missed:
This shot was taken a second after the first one and was the last shot of a 3 shot burst, just to show that there was actually a deer in the photo above. It also demonstrates the benefit of taking a 3 shot burst:
This shot shows the decent flash range with this camera and you can also see that the hind is looking directly at the camera as it triggers:
This was taken less than a second after the photo above and that blur in the frame is the hind clearing off at maximum speed. Not all reactions are like this by a long way and I think it was just unfortunate that she happened to be looking directly at the camera when the infra-red flash fired. The glow is pretty low level so usually if the deer aren't looking at it they don't notice. Another point is that when I run it in video mode the "flash" is on for the full 30 second video clip and so this gives a much longer time for the deer to spot something wrong.
Even without the flash deer, certainly sika, spot the camera and they know that it is something new and are wary of it which is why I think the "black flash" is an advantage, but not an advantage I would pay for or trade off on other features to get as just the camera alone can be enough to put deer on their guard:
You can see the flash reflecting in the eyes of this sika calf but because it wasn't looking directly at the camera and was distracted by something else there is no reaction at all to the flash and the deer goes about its business, again it is easy to see why a fast trigger is an advantage:
Some of the daytime photos are nice, and the videos out of this camera are very good as well in my view and are something I've just started playing with. This hind and her calf messed about in front of the camera for some considerable time before going on their way: