It seems strange to describe a dictionary as fantastic but this one is. I did look through a number of dictionaries and this far outshone the others, partly because it differs in its purpose.
The clarity and layout are great. The real joy though is the examples of use which puts this dictionary into an area between dictionary and grammar perhaps. The book is described as a Learner's dictionary but this is not a low ceiling.
This could be viewed negatively though. It is not a dictionary for the rucksack and an immediate translation but one for the desk. An entry may take the bulk of a page in some cases but so be it - the short translation is always immediate.
Be wary that this dictionary is Greek to English only. You need the supplementary English to Greek to as well if you really want to benefit from this approach, and of course the pocket dictionary for the rucksack!