Things I love:
-Clean design, very easy to use and lots of visibility and other settings (font size, search order)
-AMAZING content (everything from learners this app to big expensive unabridged this app like Reader's, Random House, and Kenkyusha, and the Robert French-Japanese this app). This has replaced my trusty old Casio Electronic Dictionary.
-One purchase is shareable between all devices-- I use Dictionaries and its contents on my iphone, ipad, and Mac, syncing seamlessly.
-Great support: whenever I have had any issues, I get polite and helpful replies from the Japanese staff.
Things that could get better:
-Just keep adding content. The Kanjigen kanji dictionary, and the Kenkyusha Shin Ei-Wa Daijiten are two that I would be very excited about.
-To people who aren't used to spending money on a dictionary, relying on free dictionary databases, or the internet, I would just say that I've found the quality of definitions and examples to always be worth the price in the long run!
HIGHLY RECOMMENDED!!!