This review summarizes my last four Delta flights, mostly in business and first classes. First, from Haneda (Tokyo) to Minneapolis (DL120), a day layover to Cleveland (DL3425) and a second segment from Cleveland (DL5093) to JFK and finally to Brazil (DL471). They have nice assistance, some of them not that good, and a good food option. The business seat from Tokyo is a kind of small, even for a small person like me, and not very comfortable. I wish it could have a better lounge service and comfort in JFK, but the flight to Sao Paulo was very comfortable.