Just tried out the project to PC feature and turns out it's pretty awesome. Connecting between PC is pretty easy and seamless. The delay is surprisingly low. Much lower than any Miracast adapters I have tried. I would say it's effectively instant. I can change the projection mode just like any Miracast adaptors. The picture below I used extended mode and my old SP3 became my fourth monitor, which I think I think it's pretty. A bonus is, the receiver PC doesn't have to support Miracast to be able to be the receiver (I tried it on a Atom PC does not support Miracast). Basically, any Windows 10 laptops and tablets can be easily turned into an external monitor now.
The downside is it doesn't work as well with my Lumia 1520. It worked with my Atom PC (even though the delay is much higher) but neither my SP. I hope they can fix the bugs and optimize it before the official release.
The downside is it doesn't work as well with my Lumia 1520. It worked with my Atom PC (even though the delay is much higher) but neither my SP. I hope they can fix the bugs and optimize it before the official release.