The NRSV is the English translation used by scholars and serious students of the Bible. It's a very accurate translation with much less bias than many other popular translations. It's also written in very readable modern English. One of the goals of the NRSV committee was to retain, as much as possible, the literary beauty of the KJV.
My background: As a Bible and Theology major, I have read the following English Bible translations and versions (there is a difference) in their entirety: KJV, NKJV, ASV, RSV, NRSV, NIV, NASB, NLT, AMP, and The Message. I The KJV has always been my personal favorite, despite its limitations. However, the NRSV is the translation that I most recommend, and the New Oxford Annotated Bible (with NRSV text) is the ONLY study Bible that I recommend for someone seeking honest, factual, and unbiased information about the Bible. Most (though not all) other "Study Bibles" are less than reflective of scholarship and many only serve as shameful apologetical propaganda for a particular theological position or denomination.
Anyways, I hope that helps. Peace!