I was looking at buying this router: https://www.amazon.com/dp/B00F0DD0I6/_encoding=UTF8?coliid=I30OWBGLX9A1HS&colid=2CHCTI683KE4G. Bought one that looked just like it on black friday for $89 at walmart. Come to find out, it's actually a different model: https://www.amazon.com/NETGEAR-Nighthawk-AC1900-Smart-Router/dp/B01I5T9KVC. Is it worth it? What are the differences?