SDL Cloud subscriptions

I have recently bought SDL Freelance 2015 and am wondering just how many people subscribe to the monthly iCloud subscriptions with the dictionary and engines? 

Are they worth it?

Which is the best value for money? I am only working part-time at the moment so I am trying to keep my outgoings as minimal as possible.

I am also curious just how many people use google and pay for the API key?

Thanks

Sarah