Hi John,
That’s correct, I can have my chain in Console, but I can’t immediately monitor through it straight after the take, or in-between takes 
And having a chain of 3-4 plugs in Console for 1 channel and maybe just 1 for another channel of the same source is causing a latency that you must compensate for with Console’s fixed set of buffers (Input delay Compensation). Recording drums in Console means you have to have the same processing on every input (an SSL channel for example) to keep them aligned before DAW if you want the tightest latency - I like to keep IDC off
I also find that copying the Console plug in chain settings to inserts in the DAW after the fact is never quite the same as it was when it was tracked. And being able to automate the same record chain for the mix means you’re only doing small amounts of changes instead of starting in DAW with a pre amp treated vocal and whacking processing on it that wasn’t there for the performance - you can’t get the original magic back like that (I find)
If you record enable an input in LUNA (ARM), any AU plug on that channel is disabled, also, any BUS routing needs to have either AUX 1 or AUX 2 assigned to it to keep it tight latency for tracking. You can have as many BUS as you like (I haven’t hit a limit or know of one) in the mix of course, but there’s still only AUX 1 and 2 for the tightest latency while recording. Any input put into ARM without it’s BUS also ARMed gets routed straight to the MON L/R (and can be cued etc).
So even if your cpu is crying that your 99% complete mix is so dense, you can still track through your 1073/1176/LA2A /Capitol Reverb combo you used when you started to track the vocal at the same tight latency you had when the project was empty. It’s also now the perfect chain, because you’ve been tweaking it all the time during the mix, and the exact UNISON you used comes up as soon as you ARM the channel. One Click. Now that is something, right?
The in-track Studer/Oxide and Neve Summing aspects of LUNA run natively from your cpu, (this is why iLok is required). I haven’t had any issue with load as regard Studer Channel feature (and I’ve had it on 20+ channel), I guess this is because my main plugin load is on Satellite and the Apollo DSP. I haven’t cracked open the Neve Summing yet, would be nice to have another Summing model to compare it to maybe (at least SSL and API incoming at some point)
Look, all this is great, BUT at the same time in V1, LUNA can’t side chain (UA or AU), there is no insert routing (Mono/Stereo), hardware inserts not possible yet, there’s an extensive list of features you would want, that just aren’t there.
Only time will tell if UA has the commitment needed to get LUNA up to the standard Cubase (and others) have set. But they sure have an Ace up their sleeve if they do.
Stay safe all