This huggable thing is my favorite dragon-type alongside Noivern. Goodras however are more annoying to train, since Goomy is pretty weak and can't take much hits without the right nature.
I don't think I'll get tired of Gussy though, if only Pokemon were real, she would be one of the higher trained Pokemon on my team. Plus I doubt I'd stop cuddling with her, despite the fact she's a slime dragon. >w<