What's Important in a Multi-screen System

Great forum. Not sure how I missed it before...

Anyway, I wanted to see if I can get some advice on what is important in a system. We have a multi-screen playback system coming out, (we've spoken to some of you about it, I see) and we've decided to start selling by getting creative producers aware and interested of the product - specifically a small demo we're doing here in Marin, CA later this month.

Being more from a technical side, I'm quite happy describing the technical advantages, but I feel a bit less confident picking out what actually matters to the creative designer when selecting a solution. I think most people on here are creative and technical and can probably change hats quite easily.

I'm happy for any advice, but some specific candidates are:
Automatic playback - scale, rate convert and fill 'screen' with each video type,
Wide range of codecs,
Projection mapping style screen setups (overlaps, screen division),
automated file distribution between decks,
hardware based (single purpose, closed off linux machines),

Some of the stuff we do are a big deal compared to VTRs or DDRs, but probably not to you - maybe to less technical people?
Internal dissolves,
Networked multi-control built-in,

Probably the main feature we have that I haven't seen elsewhere is a 'Track' system, where you play a clip onto a Track, and then it will play in sync on various decks in various sizes, positions as needed - sort of like a 'bus' in audio. That means that programming becomes less necessary - it's mainly just playing a file. Sort of like the old days, when you shot a video projector into a hole in your slides.

So what should I focus on?

Thanks,

Bruce