Likewise, not heard of DICE but done a local equivalent of DAFNE. Mine was called "Freedom 4 Life".
This fitted better (but not perfectly) into my life as it was 4 hours every Monday evening for 5 weeks.
It was useful to have week between sessions to put things in practice.
However, by far, the most valuable thing for me was to spend time with other people with type 1 diabetes. I learnt so much what it can be like living with diabetes and some of the tricks they had learnt over the years.