I had a Charlyn and switched to Electric last year.
I didn't like how a Charlyn is "darty" meaning it's not happy in the center, it's always trying to turn. Then you have the long hoses, hot oil, seeping fittings, belt issues, etc.
Electric is awesome. I bought the kit with the adjustable assist and I can dial in how easy I want it to turn. To me feedback is worlds better than a Charlyn that essentially gives you nothing back.
If you stall your car or just want to move it in the garage, you can easily turn the tires with the engine off. I sold my old Charlyn on GD and it more than paid for the electric setup. The kits available have mostly everything, you just need to figure out what U-Joints you need for your car.
I agree that it's probably sketchy on a larger car, but you have to think about almost every new car coming out using electric, has to be reliable and safe.
I bought my kit from a GD vendor, and there's another guy in Ramona that has everything. E-Powersteering I think.