I've got all the orphans from Comfy chair and while not terribly out of proportion with most adult sized models on the market, they are noticeably larger than Hasslefree's kids models. By that I mean larger heads, hands, feet, and marginally taller. The difference was significant enough to prevent me from mixing the two on the same large base to represent a "swarm", though others may not be as picky.
The sculpts and castings are really quite nice though.