RPG Menagerie: Kaa

GURPS Aliens is chockful of interesting aliens races/cultures, and where they've obviously taken inspiration from famous sci-fi franchises (for example, there's a Wookie type and an honorable warrior race like the Klingons), they've always thrown enough twists into the design to make it stand on its own. And so when my mind wanders and I imagine myself doing a GURPS-driven Star Trek pastiche, I start to make certain substitutions, which in turn, change the pseudo-Trekverse in interesting ways. Let's look at one of these - the Kaa - who I would have subbed in for the Romulans.

Monster: Kaa
Game/Product: GURPS Aliens/GURPS

Writing: Chris W. McCubbin. Art: Denis Loubet and Glen Johnson
Origin: In a compendium of alien TYPES, the trope of the evil reptilian alien - slavers and sentient flesh eaters - is filled by the Kaa, taking it a bit further than special effects of the time would have allowed by giving them a Naga's snakey lower body. They're big snakes with arms. This one is naked, but another pic shows one wearing a ceremonial/royal robe. They are described as the Big Evil Empire of the Galaxy, a race that thinks itself superior to all others and can therefore commit all sorts of heinous crimes against their "less than" enemies. And yet, they're also unctuous, charming, eloquent  sophisticates. 
Fear Level: Above Average. There's something visceral in humans' reactions to reptiles, especially the ones on the snake end of the spectrum, and the Kaa's reputation for eating their enemies is sure to give you the shivers.
Danger Level: Above Average, too. They are basic sentients, but the claws, constrictive tail and venomous fangs gives them dangerous hand-to-hand tricks even if they lose their blasters. They also have a racial form of hypnosis, which I would use to freeze opponents in place while my Kaa closed the distance.
Not famous example: They don't have names, just titles that describe their status; the example character is "called"  The Count of Aliaa. Some years ago, I played in a Star Trek Adventures game, in which the ship would be stuck in some far corner of the Gamma Quadrant. I had convinced my GM to let me play a (dissident) Kaa as the "alien" of the show (the Neelix, if you will). GURPS does describe the Kaa as a playable race - referencing their individuality despite a certain cultural unscrupulousness. Of course, that would have forced the GM to build part of the campaign around the Kaa, and I don't think he had planned for it. AND I would have to play a Starfleet character until we got through the pilot (which took several sessions at our pace), so I ended up making a Bolian, and liked him so much I abandoned by plans for a Kaa PC.
I wonder if: I would have found more joy in playing a Kaa, or been frustrated with the probable difference between my idea of them and the GM's.