I’m a long-standing 5:2er, Urmstongran, and it really works for me. I must say it doesn’t suit everyone though - my DD1 gave up on it after a week, as fasting made her feel light-headed. I’d like to see MM in action, but I’ve just checked out when he appears round here and it’s on the one weekend this year we’ve already booked to go away.
I haven’t started my exercise snacking yet. I reckon 2019 doesn’t start properly until all the leftovers are gone. 