Interestingly the book of Revelation cites the OT more than any other NT book. The vast majority of the verses, if not a direct quote, are a clear reference to OT scripture. You don't have to subscribe to G.K. Beale's eschatology to appreciate in his commentary on Revelation the exhaustive study of OT references in the book of Revelation. If you are not solid in your study of the OT you cannot come close to exegeting Revelation.
Revelation is also the only book that promises a blessing to those who read it. :)