>Did anyone give it a go? Like/not?

Yeah, wife and I watch netflix / youtube in edge on continuum all the time on my lumia 950 (great combo with t-mobile binge/on). It really works well as wireless pc mouse / remote with the wireless display adapter from bed (seemless, 1-touch, no issues for me). I don't use it for actual computing since I have surface / macbook for that.

I've used it to Miracast things to my TV (via the Xbox One), and nearly gave a PowerPoint presentation from it once. That's where I see it being most real world useful is for last minute presentations where I already have easy access to my .pptx files on my phone and can Miracast directly to some TV or projector.

It's also the interesting thing here too about how Continuum is in competition with the UWP that enables it: in my case all my devices run Windows 10 and have access to all the same apps. With roaming and cloud services I can just pull up that app on any other device and switch devices freely. I rarely need to Continuum cast to some other device within my home because that app and that data is already accessible there...

So I could see saving the day with a last minute PowerPoint presentation somewhere where the only laptop I thought to bring was my phone, but that is mostly it. If there were coffee shops or hot desk spaces or hotel rooms with Miracast-capable screens and bluetooth keyboards scattered around the country you could see it being even handier for things like random Word document writing on the go for the traveler that doesn't want to bring a laptop everywhere...

So I've liked it for what I've used it for and I can think of scenarios where I would use it more, but I find day to day I don't use it much.

Phone CPUs are (often barely).

Phone batteries generally aren't.

Yes Lumia 950, 950XL support Continuum today. No, they aren't x64 phones and don't support x64 apps. They aren't restricted to the app store, you could sideload UWP apps if you had them. UWP apps these days are "full windows apps" for all intents and purposes these days. There may not be as many UWP apps right now as there are the long legacy of Win32 apps and the deep wells of Android and iOS apps, but there are some very good UWP apps out there, some of which are very useful in Continuum.