OK, so I really like this little Nano Cortex. It's no Quad Cortex, but for what it is it works really well. Form factor is amazingly small.
On my Quad Cortex my main bass tone is the combination of 3 different captures and a touch of Cortex built in reverb. With the Nano Cortex you can only have one capture at a time in the chain. That is a bummer.... but I just connected my Quad Cortex to the Nano Cortex and did a capture of my typical chain which includes multiple captures. The end result is one capture on the Nano Capture. You can't tell a difference between the Quad Cortex path containing the 3 individual captures and the single capture on the Nano. That's cool!
This means that the Nano Cortex is now outputting the exact same tone I typically use the Quad Cortex for.
Here's the capture I made if you are interested in giving it a try on your Nano.
Neural DSP Technologies - Algorithmically Perfect
That out to FOH is all I need. Oh, and a compressor in front!

Gain it up if you want a bit more growl.