Ease of Usage: Very easy and intuitive to use [...] Moreover, the hover-over translation is absolutely incredible.
Arabic Synonyms: Helps build up the vocabulary.
Completeness: Unlike the Mawrid and Sakhr, VerbAce provides much more complete information about verbs and nouns. It also provides commonly used phrases (mostly contemporary) which clarify the meanings further.
Accuracy: The search engine of VerbAce is far superior than Sakhr or that of the electronic Mawrid. It returns results faster and much more accurately.
Speed: The results are displayed very speedily, yet accurately.
Verdict: Essential for beginners and intermediates, useful for advanced students (due to its speed and accuracy). The hover-over translate sets it apart from all online dictionaries. A must have for all students.

I’ve searched all over the internet for good Arabic-English reference/translation resources, and VerbAce-Pro stands head-and-shoulders above anything else I’ve found. It’s so easy to use—I just hover my mouse above a word in a newspaper story or online report, and a small pop-up window gives me several English possibilities [...] This is amazingly useful. VerbAce-Pro is an absolute must for anyone interested in maximum efficiency in working with Arabic text online.”