Without question! I shall certainly be upgrading my 808.5. And my 861v8 as soon as possible thereafter.
To enjoy Tidal in my 2 channel system I shall have to drill a hole through the wall to run a cable to my router. And I will also have to get a laptop and tablet. Thankfully none of that is needed for the 861. So the outlay and bother is greater than just the upgrade. But I am certain it will be more than worth it.
For comparison, go to Bristol and listen to the Naim Statement system at the Marriott. I would unhesitatingly choose the Meridian system rather than the Naim.