I didn't order a set of Bussos. If their web site was better and people could get info in English I might have bought in. I'm still waiting to see if anyone got theirs yet. Yamiya and CMSNL have the language barrier figured out, Busso not so much.
When 4-4's are available, they look too expensive and when they aren't available, you wish you had bought them when you could have. I got a set of Yamiya 4-4's off ebay for $1200 a decade ago or so, that was a deal. I think it was from Mark IV motors.