The power supply to the SwitchPro needs a fuse (included). The individual circuits do not. I think many SwitchPro installs are using the PowerTray combined with a BlueSea terminal block to clean up wiring, avoiding a bunch of butt splices.
I personally am switching from an sPod to a SwitchPro. I really liked the PowerTray setup which allowed for mounting a SwitchPro, ARB Single and a BlueSea fuse box all together.
With my current setup, I had my sPod mounted on the fusebox connected to my secondary battery then all my accessories connected to the sPod to keep wiring as clean/centralized as possible. Unfortunately, the sPod turned off circuits (mainly my fridge) which draw very little power which was less than ideal. Moving to a smaller setup while adding a BlueSea fusebox will solve this.
I'm not super technical, but it appears to me that the SwitchPro is technically better. It's circuits can support higher draw (35 vs 30 amps) than the sPOD, it's weather sealed, it has native Bluetooth support all in a smaller and cheaper package.