I've been researching streamers and the control app will be a very important consideration. I use the excellent BluOS app at present (for NAD, Bluesound and more recently a number of other brands), so I appreciate its usefulness compared with many other apps.
I had a demo of an Innuos device recently and could get used it its Sense app, though I don't think there are PC (windows or Mac) versions. By all accounts from this and other forums, the Lumin app is poor and also on limited platforms, so I won't be going down the P1 route despite the fact the hardware ticks all my boxes.
I'm likely to go for the yet-to-be-released NAD Master Series M66 streamer / DAC / preamp as it also ticks all boxes (and likely everyone else's too) and its BluOS app is second to none, apart from Roon that required extra hardware and a subscription. M66 due for release in November.
PS - If NAD's brand name conjures up cheap and nasty mass-produced mid-fi (as in the early days perhaps), keep an open mind and seriously consider their Master Series. They are routinely reviewed with exceptional praise.