At the risk of getting in some hot water....
I really, really like a certain 'speckled' 1k stone.
It's the only stone I've tried from the line but it's a very nice feeling stone and it cuts very fast.
I have not used the Gesshin 2k or Bester 1.2k which are probably my next moves in that grit range (the JNS 800 looks awesome too... so little money, so many stones) - but I am very happy with the purchase.
It dishes fairly quick in my experience so it requires constant flattening but it is by no means a 'bad' stone.
I use it & a Suehira Rika 5k as my standard 1-2 punch for my work knives and I personally find it very effective. But I am not in the business of sales and I understand and respect why people would not wish to do business with certain folks - but objectively, as far as stones go, I am a fan of this 1k stone. My two cents.