Doing a search for books on Amazon called "Bhagavad-gita" yields almost 7,000(!) results. A lot of editions to wade through. Which one to choose from? Some are written by academics, some by poets, some by philosophers. There is at least one by a politician (Gandhi), another by a Theosophist (Annie Besant). There are versions by pop-gurus like Osho, Yogananda, Maharishi Mahesh Yogi, Ram Dass and Aurobindo. And many written by those whom we have no knowledge as to their qualifications.
There is a saying that "you cannot taste honey by licking the outside of the jar. You have to open up the jar to taste it". In the same way, the Bhagavad-gita cannot be understood by an intellectual dissection of the words; it can only be understood by someone who is following the clear path outlined in the Gita. This is also the reason why a simple translation is not sufficient; a commentary is absolutely required.
This version, the Srimad Bhagavad-gita, has commentaries from stalwarts in the Bhagavata School of Sri Krishna Chaitanya (1486 - 1534). The commentators are Srila Vishvanatha Chakravarti (1626 - 1708) and Srila Bhaktivedanta Narayana (1921 - 2010), with additional commentary by Srila Bhaktivinoda Thakura (1838 - 1914). These commentaries are eloquent, with exquisite clarity. To authenticate topics discussed, these commentaries are heavily annotated with references from other Vedic scriptures. This book goes hand-in-hand with another book from another Titan in the disciplic line of Sri Chaitanya, namely Srila Bhaktivedanta Swami (1896 - 1977). That book would be "Bhagavad-gita As It Is" (1972 Edition).
I prefer the print version, but I bought the Kindle version just for its ability to quickly find a passage by using the search function. My only complaint about this Kindle version is that it lacks the Devanagari text. But I still give this book a strong five stars.