The place where the wedding was shot was seriously darkish, so we had to rely once more on flash photography.
The A99 is simply fantastic in terms of color reproduction, much better than the competition in my mind, bust serious event photographers might still prefer the likes of Canon 5D MkIII due to the better high ISO performance.
We shot with both my new A99 and my now ancient A580, and of course the A99 produced much more stunning images. That said, my Sony 20mm 1.8 lens doesn't seem to match well Full Frame, though it's supposed to. There is too much curving distortion at the edges, making people's heads look strange, and made me work furiously with Photoshop to try and compensate, and also make a lot of crops to negate this issue. It works better with the APS-C sized A580.
I also found out that 32GB cards are just not enough for the A99, even when you have two slots. I should get a 64GB card, but the prices are a little bit steep right now. It is worth to invest in a speedy 90MB/s card as there is never a delay in writing RAW files, even when you shoot a bunch of them. Switching to a slower card, I found some delays when shooting multiple photos that I was used to with the A580.
Why not just buy multiple cards? SD cards sort of scare me. I wish cameras would just come with an internal 256GB or 512GB hard drive and Wifi capability for over-the-air backup.
What happened was that sooner rather than later, my first 32GB was full. I thought that the camera would switch to the next slot, or at least offer to, but it didn't. Instead, you have to go once again through the menus to switch to the other slot. Bare in mind that the playback and recording slots are not necessarily the same. This should definitely be addressed. When in a hurry, you don't want to go through menu options. It's bad enough that switching between focus modes is also a menu option. There should be a button to go through them. Maybe, when video recording is disabled when not in video mode, the record button should switch between focus modes.
So, verdict is - great camera, not that great a work when it comes to to human interface design. Please, Sony, next time you have a new camera, please send it to me so I can check it out and let you know how it performs in real life :)