First one I had wouldnt power on.  Replacement works.  Took about 30 mins to finally get it all set and working.  I didn't expect it to run everything I would want, but finding it can't run many things I want.  Can't seem to load any programs other than Microsoft store stuff.  Which apps kind of suck.  Its a VERY slimmed done windows 10.  I haven't had a windows based phone, but it seems more like that.  Very limited.  Also not super fast, but for basic web surfing and some video playback it seems ok.  Only into day 2 with it, so hope to learn more and try more.  Will report back if other issues come up or figure out other things that make me like it more.  But for now it's ok.