A learning tool as well as a dictionary
I like the fact that when you have looked up a word you can add it to your favourites and then run the flash cards on those favourites to help you learn rather than just keep looking up.
I also like the examples of where the word is used in sentenses.
It is worth the money
Update after one year - i still think it is well worth the money
East Coast Cris about
English Spanish Dictionary, v7.8.2