This Bible has the usual outstanding Nelson binding and printing. Their products really do last a life-time of daily use. I was specifically looking for a KJV Bible with "segment headings" within chapters similar to divisions seen in some NRSV pew Bibles. This Bible has those. The center-references are copious and apt. The print is a bit small, but I've other Bibles with equally small print, so I am not too much bothered by that.
The price point and quality of paper, print, and binding is exceptional. With regards to the parallel format I find it valuable to compare the differences side by side but would have preferred facing pages and larger print versus the center paging.
I have had this Bible for 2 days and I have studied it 5 hours. I own 10 Bibles already and 3 are study Bibles. This is better than a study Bible because you pay more attention to the message of both Bibles. KJV being the original translation since 1611 after English has taken many forms and the NKJV being updated by 150 Bible scholars. Believe me the NKJV has actually translated God's message by revealing what it really means now. KJV is my favorite but with the NKJV you can read faster and comprehend the Word better.