@saffy Just to clarify, TIDAL does not get unfolded. MQA is unfolded by licenced manufacturers who have been approved to use MQA.
I cannot vouch for the abilities of Arcam or Aries, but you also may consider MYTEK as it offers MQA and has had good writeups/reviews.
I do own a Bluesound 2 and find that it does all required for my listening pleasure (streaming digital etc) and sounds very good, with the rest of my modest system to back it up.