Rega Mira III used as a preamplifier?

I'd love to hear experiences from anyone who has used a Rega Mira III as a preamplifier.

I've been using the Rega Mira III as an integrated amplifier to drive a pair of Soliloquy 5.3 floorstanders, with decent results. As usual though, it didn't take long to get the upgrade bug. Would love to get back into separates, starting with a good tube amplifier or monoblocks (maybe ARC or Cary).