Rf Kh keeper vs dd kh manager?

[Figaro]

Mindstorming about this two products not sure wich one to chose. Is there anyone that had experience with this two or anyone with any experience with only one . I am leaning toward dd kh manager because of kamoer history as precise pumps etc, but there is no long term reviews. On the other hand there are lot of positive rf kh keeper plus reviews and rf reagent is cheap. Any help i would appreciate

 

[Figaro]

Can moderator pls delete this thread i accidentally create 2