I own the Sony a99 since publication and would therefore reflect what kind of times. I am an amateur photographer and was previously with the Canon EOS 50D road until the A99 came out, and I ran through the change of system, what I have not regretted second to now. I wanted to switch to a full-frame camera and spoke in favor of the A99 some (important for me) benefits. The first advantage is that the electronic viewfinder (at first glance which made it a bit strange, but I do not ever want to miss it) to have a live histogram in the viewfinder for me the big advantage, or to have all the relevant settings for me in the viewfinder , The second advantage is that the AF-D focus mode with the focus limiter, just the focus limiter I find just brilliant, measuring the foreground on the not the focus is to jump and makes the arrow just behind this mark and even that is pumped between the foreground and main motive past. The third advantage: When focusing manually, it is a huge relief that dominates the Camera Focus Peaking, thus showing a selectable color at the borders, where the focus is, before you do that picture. This I find very important not only when photographing but also when filming. The fourth advantage is when filming because the autofocus is very fast and reliable, thanks to the SLT technology.
That's 3 relevant benefits at that time spoke of the A99, the picture quality and the processing of the camera are also very good in any case for me. Of course, the A99 also has some disadvantages, especially by the SLT system: The semi-transparent mirror foil front of the sensor light is lost compared to the normal SLR. The electronic viewfinder is very good in my eyes, but he can not serve up an optical viewfinder.
My conclusion for the A99 therefore: 5 stars, because the disadvantages for me personally absolutely irrelevant and I miss nothing to the camera, except that the focal areas should quietly go to the edge.