I really love using the Silent/electronic shutter on my Alpha cameras. At first it took a while to get used to not hearing the sound of the 'click'. I solved this by setting the camera up so I see little flashes - it assures me that I really am taking photos. I know many photographers use silent shutter in very quiet and sensitive situations, however I also find it great for photographing people. We all have experienced our subjects rolling their eyes and lamenting - ' don't you have enough photos already'. The silent shutter solves this problem as no one is hearing the clicks so they don't know how many images you have shot. Of course when you are photographing professional models you want the sound of clicks as models make small changes to their poses after they hear the sound.
The only issue I have with the silent shutter is when I am shooting under cheap LED lights and banding occurs at higher shutter speeds. The newer Sony cameras scan a lot faster and have gotten much better in these situations.
What is your experience and preferences for shutter selection?
I could definitely see the benefits and I thought I would use it a lot more. I don't photograph people though, so wildlife is the only thing I'd use it for and the electronic shutter sound is actually pretty subdued. So I stopped using silent shutter mostly because I filled up my cards too fast. I need that audible sound to let me know how much I'm shooting.