Instruction: Answer the given question using the supporting document.

Input:
Question: how long does it actually take to sharpen a knife?
Document: Disclosure: I got this product as part of an advertorial.This knife sharpener is AMAZING!! We use an electric one for all of our knives, and I'm pretty sure this one will take its place. We went ahead and sharpened over 10 knives and it really put a nice sharp edge on all of them. We are very impressed with the ease of use and how quickly it sharpened the knives. Also one of our favorite knives had a few dings in the blade and this actually evened it all out!
This is very nice small sharpener. It does a nice job honing our ktichen knives so the whetstones seem to be good quality, but I did not take it apart to inspect them. Only time will tell on durability but it is small and light so it is probably not a long term (e.g. 5 plus years) device. At this price it need not be.
It only takes a few seconds on each knife so you can sharpen them anytime they need it. Now I can sharpen my own kitchen knives when I need to and not wait for my husband to take them out to his toolroom to do it. I received a complimentary product in exchange for a fair and honest review.
Most importantly, this sharpener actually dulled some very nice Japanese knives I have. I just hope they are not ruined. I followed the instructions carefully in terms of drawing the knife the correct direction. For any doubters out there, I do know how to sharpen knives, as I have used a lot of tools in my life (worked on cars a lot, etc. )
I've had a couple knives that have dulled out over years of use. So a knife sharpener certainly would come in handy. This is a manual device, so it makes learning how to sharpen knives quite easy. No pressure of making mistakes and you can take it as slow as you want.The device isn't limited to knives, but any sharp sided device. Scissors, knives, paring knives, blades, etc. So it's quite useful.
If you sharpen scissors or garden shears it will take maybe twice as many draws to get a paper cutting edge. The edges I got with this simple device rivals what my friend gets from his $100+ electric machine...and he has to finish with a wet stone. Yep, I love it!(Mr. Easton- would you throw that coupon offer to me again?)
Seems to be a very good product so far but since I am not an expert on knife sharpening, I would not know if it is taking too much steel off my blades but it is effective. I hope it lasts for a long time. We'll just have to see.
I have been looking for a knife sharpener to do everything that this one does for a very long time. I have big knives, small knives, serrated and straight plus hair cutting scissors and this knife sharpener does it all. This is the only knife sharpener you will ever need.
Unbelievable.I grew up sharpening knives on a stone, and finishing them off on a leather belt.So I know what a sharp knife is.This sharpener is not expensive, and will take the dullest of knives and make them sharp again.Unbelievable.I'm getting this for my next Christmas present to friends. They will highly value it.Carl Strain, Midland Texas
This is one neat little knife sharpener. It&#8217;s actually smaller than I expected it to be and works better than I had expected as well. It has a great suction feature on the bottom of it. I was easily able to stick it fast to my counter top. It didn&#8217;t budge either! I didn't have to worry that it would come off while I was sharpening.
Answer: 3-4 pulls through the sharpener, just as advertised.  Hands down the best sharpener I've ever used.