A basic electric knife sharpener will produce very sharp knives, certainly sharp enough for most people.
Purist will call them crap, but I use both a traditional whetstone and an electric sharpener and the electric gets 90% of my usage. It takes a few minutes to take a knife from "very dull" to "pretty sharp". The whetstone definitely gets them sharper, but it takes a lot longer and you only notice your knives are dull when you're right in the middle of making dinner.
Purist will call them crap, but I use both a traditional whetstone and an electric sharpener and the electric gets 90% of my usage. It takes a few minutes to take a knife from "very dull" to "pretty sharp". The whetstone definitely gets them sharper, but it takes a lot longer and you only notice your knives are dull when you're right in the middle of making dinner.