So what does this device primarily do that I need right now? Just throttling internet for certain devices and prioritizing others? I'm not even entirely sure what 'uses smart software to find the best WiFi connection' means. What's the value prop here given the device costs $200? It's not like it can better your internet somehow.
The only way I can interpret that quote is, "it can automatically switch wifi radio channels when the one its using gets congested". I don't know, maybe there's more to it than that. Because $40 routers can do that.
No $40 routers that I know of do anything like that.