Back when they first came out, I tended to scoff at the idea. Now, I think that was a rather closed-minded approach for me to have had.
Now, I look at them purely from a pragmatic point of view.
Using them now would depend solely on whether they tuned reliably, were dependable, and do not seriously imbalance the guitar due to their weight.
I do recall back then that some did indicate that they didn't always tune properly and they tended to wear out. I also recall that SG owners, particularly, had complaints about them creating serious neck dive.
So, would I use them? Assuming the above issues had been corrected, I wouldn't necessarily spend the money to install them on a guitar and replace existing manual tuners, but I wouldn't reflexively remove them from a guitar or avoid buying a guitar that had them, either.