The Complete Plays includes all of Marlowe's plays (well, obviously.) As a bonus it includes the rather fragmentory Massacre at Paris (which many critics theorize is a corupt, unfinished, or damaged text) in a scene division only format and both editions of Doctor Faustus.
Marlowe's plays, while not on the same level as Shakespeare's best, are far and away superior to any other Renaisance era dramatist (See also, Thomas Kyd, Ben Johnson, or Richard Wharfinger--if you can find him hehe.)
The best thing about Marlowe's plays is the level of respect for the audience. Judgement of the characters is (for the most part) left to the reader. Tamburlaine can be viewed as hero and/or villian.
And, it being Renaisance drama, there are some spectacular death scenes--Edward II's anal cruxifiction, Brabas's boiling alive, Faustus's dismemberment, and the Admiral's hanging/shooting to name a few.
One complaint, and this is really more of a preference, but the textual notes are in endnote format, rather than footnote format, and they're not numbered notes--all of which makes finding latin translations a little more time consuming.
But, for fans of the genre, this is the way to go.