A:AnswerPlur and Play is usually associated with computers. But if you are asking if it is easy to install, the answer is yes. It pretty much does everything for you.
A:AnswerIt cant boost your speed. That depends on your provider and speed you have set up for. But it sends out a strong er signal for WiFi so that back areas that may be getting a weaker signal and slowness because of that get a better signal. There are different channels on this device to hook up to. 5g and 2.4 channels. So do not have to overload and put all on one. I have TV streamers and my phone, game systems on the 5g channel and my kids stuff on the 2.4 channel. So not all overloading onto one. Very noticeable difference!
A:AnswerAlexa works off of your wifi signal. So if you install this router properly and have a "wifi" signal, Alexa should work fine. Please be aware that the closer Alexa is to the router, the better it will work. The wifi signal will weaken the further it is away from the router. I had to purchase a wifi extender to get a good enough signal in the rear bedroom to be able to stream TV / movies. Streaming music takes much less bandwidth than video, so Alexa should... work ok.
A:AnswerI have this router set up in the garage. Wifi is still strong thru the whole house. I even test it with an iphone from 100' away, I was able to get 20mbs. But the laptop only get 2mbs.
A:AnswerNo this just makes your internet available through the air. You hook your internet modem to it and it broadcasts internet through out your home wirelessly.