Both, while we're at it, but the base version isn't proper related.
Objectively the non-Mayasuran model is a thousand times worse. Burn Drive is easily one of the worst systems in the game, but the (M) Manta isn't that much better. The Falcon is a faster ship which has better firepower to boot, with superior shields and maneuverability. If the AI was intelligent enough to use it as a fringe out-fighter and just hunt down vulnerable carriers and flanking frigates, it wouldn't be so bad. As it is, bringing one is a waste of an already limited fleet pool, as the ship practically self-destructs if anyone eyes it weirdly.
I have lost track of how many I've lost the last few days literally within the first 30 seconds of the engagement to mere strike craft and skirmishes with frigates and other fast destroyers. It's niche just seems to be this really awkward extreme-early game where you only use it because you somehow found one and have nothing else to use.