Kentmere has not produced fibre based paper for around 2 years. They are still in operation but have diversified into other products. The company was quite a small concern and bought out by Ilford. The only paper that survived was the RC varigrade and the film. They had already been cutting back on the types and varieties of paper they manufactured for several years even before the take over.
I prefered Kentmere to Ilford because it was at least a stop faster, so printing times were shorter and the tones more on the cool side than Ilford. There was also a significant price differential between the two brands - by as much as 33% in favour of Kentmere, but now they are about the same depending where you buy them.
The paper speed now seems to be about the same as Ilford, as is the tonal finish, so what you are buying boxed as Kentmere, may well be Ilford in another guise. (I have no proof but these are my findings comparing sheet for sheet.) The contrast filtration on a LPL colour head to alter the contrast used to be different to that used for Ilford papers, but now it is the same. I know this is correct because I have the printed contrast filtration factor guide from my last Kentmere Fibre paper I bought and also a box of Ilford Multigrade to compare it with.
If I were really cynical, I would say that they bought the Kentmere company and got rid of their superb fibre based papers, because there was no room in the market for a better product that was cheaper. (Cynical.... who me?)
I still have about 10 sheets of 12x16 Kentmere fibre from a 50 sheet box and about 3/4 of a box of 7x5, (100sheets) but when they are gone that's it!