I tried five of these very delicious bento boxes. This box lunch set was one of the best I had ever eaten. The beef was so tender and juicy. I almost couldn't believe it was out of a box! Yonezawa Beef is prized through-out Japan as one of the most fattiest and premium beefs you can eat. If you love beef that's so tender you can eat it with a fork then Yonezawa Beef is worth a try.