Macmillan Collocations Dictionary
I can see perhaps a very serious student of written English dipping into it if there is truly a word whose possible collocations they want to find out more about. And for any teacher with an intermediate class, they might take a word and use the collocations as a ten-minute lesson filler, but I'm struggling to see the dictionary's value beyond that.
A love-hate relationship
There are a lot of excellent books on the market; most of them are produced by major publishers such as Oxford, Cambridge, Longman and Macmillan. The problem a teacher can encounter during an English lesson in Asia is that these books are not always culturally suitable for the learners.