I haven’t had the best luck with Schiit. Owned a Yggdrasil twice, and each time it developed issues. Sound quality was good, but subject to overhype online.
I’ve owned several Rogue pieces and they’ve all been extremely reliable - and customer service is much more responsive with Rogue than Schiit. Sound quality wise the Rogues generally range from a good value to excellent. Your Atlas Magnum III is an excellent amp.
That said people I trust who are more familiar with the Rogue RP line have insisted that you really want to try to go for the RH-5 or RP-5 over the RP-1.