The best NT study...
...can be done in the original language!
I like this version for a couple of reasons: first, the convenience of the dictionary (over 5000 words in the Greek NT, some used only a couple of times), and second, I like that it prefers the oldest readings. The grading system for alternative reasons is quite helpful, complete with the alternative readings themselves (for commentary on the selected text is available as a separate book).
I prefer the bolder font of the UBS3 version, but that is only because my eyes are older, but otherwise, the layout is very comfortable in good light -- in almost (99%) every NT sermon I have preached over the last 15 years, I have been able to use this as my pulpit NT, both here, and (mostly) abroad.
I highly recommend this Greek text for the serious student or teacher of the Word.