Usually you need the interface and a subscription to run CONSULT III software on your laptop, plus a security card to work on the immobilizer system, as needed.
Unless you are looking to do a lot of ECM programming and key programming, I don't feel it's worth it to have CONSULT III when there are scan tool options for the same cost or less that will allow you to do the same things, but on all vehicles, not just Nissan products.
If you want a good scan tool for the typical DIY'er, check out the Autel line-up. I use the MX808 Maxicheck, which I picked up for $365 a couple of years ago. It allows me to do all system code checks, view live datastream and has relearn capabilities. If you need any more than that, you can spend a little more and move up to one of the higher Autel diagnostic tools.