Not really useful, but feedback from the first games with a syntrofos. The Syntrofos gets significantly less interaction in most cases, making it more passive to play. The player was less a part of planning (though that could just be on the part of the player) and generally had less to do with the game. You could say he was *objectified* knee slap.

That, and combat options are pretty severely reduced, especially compared to initiators/castors and friends. It helps that he's gestalted with Olethrofex for dead raising and creepy phantasmagoria.