I have a 9.1 Dolby Atmos system, which is just a 5.1 system with speakers pointing up on the L,R and both rear speakers. A few artists mix their new albums for Dolby Surround, but mostly its for home theatre. The new Taylor Swift Albums have an Atmos mix and sound amazing.
Yes, the 5.1 mixes of the REM albums still sound amazing on a home theatre setup (5.1/ 7.1 etc) - Leave absolute rocks. And the Atmos mix of Automatic is beautiful.