I too finished without using one gem!!
I kinda like ol' Henrick. He's definitely shady (taking credit for that carriage after we did all the work!), but at least he's got more personality than poor boring, simple Stanley.
S8 has been very quiet about what, if anything the carriage will drop. But I'm reserving judgement on it's worth, because the actual drops usually don't start until after the event ends.
Totally agree about the size of the animals! Swanson is as big as the Pheffernot donk....err...pony. And the swans are giants! There is not rhyme or reason the the scale of the animals in this game. In my experience, beagles are usually bigger than Shih Tzus. And geese aren't the size of horses.
Ps. My villagers hit a vein of coal immediately after the last coach cushion was crafted. Suddenly the mines are producing tremendous amounts! I've already maxed out again. Amazing!!