My DH is 6'2", has lost from 257 to 233. He typically cuts his calories to 1800 - was going as low as 1500 and I gave him a hard time because I'd read that below 1800 was dangerous for a man. So, he still goes that low sometimes and just doesn't tell me... He has some mood swings that I think are food related, but I can't be sure.
He doesn't exercise as much as your guy, but I know he used to. I don't think that is too much exercise really. I do agree about rest time - if he does every day he may want to go a little lighter on one day. I've been doing every day, and If I work really hard for all seven I'm worn out. A lower impact seventh day has helped.