Metz 54 af-1n or yongnuo 568ex?

I want to buy a flash for my Nikon D5200. I choosed the metz 54 af-1 and can buy it for about 90 usd used. I choose it because its made in Germany. On the other side for a few bucks more i can get yongnuo 568ex or any nissin both new with ittl but they are chinese.what's your advice?

Metz.

Superior German technology trumps aggressive Chinese cost-cutting.

Metz know what they're doing - Yonguno can't even hire an English-speaker to write their website.

I've got 3 Yongnuo flashes (2x YN560 and a YN460-II) that I've used for years off camera with radio triggers and never had any problems with them.

One of them was dropped onto concrete from about 5ft & still works fine!