At the end of the day you got to evaluate your own priorities. Is salary important? or is job stability more important? Or is career development more important to you? Is this the eventual field you are going to work in for the next 10 - 20 years of your life? Is company brand important to you?

So you see, there are many factors that determine if you should take this offer up, beyond pay rise. For me, if this is the field i wish to specialise in, then career development comes first. Next comes company branding. Then comes salary and stability. But that's also because I am till relatively young.