From what I've researched, the 1000 grit is what most people need to keep their knives sharp and the 400 is only for really dull or damaged knives, so if you're not looking to do anything too crazy with your knives, this is the best value.

Good quality & value for money.

Very good quality and excellent value

Great value for the money

Product is fine and great value.

Great value and quality product!

That said, this is still a great product and a great value

This is easy to use and a great value for the money.

I had been looking for a good dual side sharpening stone, and I found this excellent value.

Good value.

It's a great value and the cleaning stone is a nice addition.

A good value.

Great value

Easy , affordable and a very good value

Comes with great instructions and comes at a great value for the quality of the product.

This is an excellent stone and a good value.

Excellent quality and great value for the cost

Excellent value.

Good Value

Best value for the money sharpening stone out there, Bought one for my kid to learn sharpening on and was surprised by how well the stone works

He did a review of this particular block and said it was a great value for the money for a beginner

Seems like good value for the money.

The whet-stone works as it should and certainly works well for average food-prep blades as well as many but not most high end blade steels

Sharpens knife as long as you know how to

It took me about an hours work with this combination stone but the knife is now as sharp as if it were new

Available e-book is great too.

These not only compare with more expensive stones, they are a fraction of the cost and you get a nice e-book to start you off