My Nighthawk has worked flawlessly for a couple years. I put Bitdefender on it (sans the VPN) and other than blocking an attack by my trail camera (my doing) the Bitdefender runs without issue.
A speed test shows I get better than advertised upload and download speeds.
But if you are going new get the latest and greatest. Spend the extra $$$ to go overkill.
And be sure it is compatible with your service providers signal.