I have one on one of my teams - It's a cost-effective way of accumulating tokens, for the bigger purchases - Scouts or Recommended players - not used them yet as most Scouts come with totally inappropriate SAs; and don't get the variety of recommendations from the AM - only ST + AMx positions this season.
Why can't we ask the AM to go looking for what we want, rather than having the same ones shoved at us? If the reckoning is that the AM is recommending players we're short of, then after buying a striker, then we don't need another one!