I have had my stick shaker installed in my Grumman for about a yr now and have gotten very used to it. Recently I did a photo mission for a friend and we spent an hour with the canopy back at 1k ft and just above the stall speed. I felt very comfortable "flying the shaker". I have it set about 5 knots above stall and while busy looking at our targets my attention was never diverted away from outside.
If I had an AOA I would have had to keep my eye on it the whole time.
I understand the industry is trying to sell another must have accessory but as for me and my airplane, we are going to look out the window and when we get a little slow I will feel the buzz just before the wings start to shake and things go wrong.
The little vibrator motors are all over ebay for less than 10 bucks, clamp it to your column, hook it to your stall horn.
Don't fall.

Ray Toews
Fort Vermilion AB