I actually have all 3... They each have their pluses, but as previously mentioned, the Prod is quite dated by today's standards. The side lever action of the Notos is far superior to the bolt action of the Prod (IMHO) and being on the left side, I can easily reload for a second shot without having to take it from my shoulder. The stock attached to the Notos similar to how the stock attached to the Prod, except the Notos uses 4 screws where the Prod only uses 2. So, the stock on the Notos is not prone to the annoying wobble you'll see witht he Prod stock. The plus to the Prod is the vast amount of avaialble aftermarket parts! BuckRail makes some amazing 3D printed parts that will greatly improve the egonomics of the Prod, and they are affordable, albeit, extra!
As for the Jet, it has a lot going for it as well! In comparison, the Notos is longer and is very accurate to 40 yards (furthest I have tested it). The Jet makes about the same power but is better close in (up to 25 yards). The Jet is much shorter and is also lighter than the Notos, and with the ability to add a moderator, it's just as quiet, and much easier to break down and stuff into a backpack. Reassembly in the field would only involve screwing on the moderator and snapping on the stock! Plus, the iron sights on the Jet are very usable, so no optic needed. Longer range, I'd definately recommend the Notos, but for short range with a need to be covert, the Jet can't be beat!
Also, keep in mind, the Notos is regulated and shot count is superiour to both the Prod and Jet 1. I can't speak tot he shot count of the Jet 2 because I don't have one, but I'd think it would be double that os the Jet 1. I get 2 magazines per fill from the Jet and Prod (14 and 16 shots) and 4-5 magazines from the Notos (28-35 shots). Lastly, the Notos and Prod both have adjustable triggers and hammer springs, the Jet does not.
Here is a side by side compreison of the Prod, Notos and Jet 1. The Prod is equipped with the Buckrail moderator, for grip and buffer tube so I can accomodate an AR Style butt stock:
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