I did my DAFNE course over 5 weeks at one day a week. My employers allowed me time off to attend, provided I made up the hours during the course of each week.
Being able to attend in this way was very helpful in that;
1. I kept my job!
2. I was able to fully take in all the information given out, as my brain was still fuzzy at the time from those high BGs.
3. It gave me time to process and apply the knowledge gained over the course of each week, so that on my next attendance I was prepared with questions for any scenario that had occurred, plus was very helpful to hear of other folks responses during that week.
4. It gave better bonding for the group as a whole, and several have kept in touch long after the course has ended - it's always good to know other T1's to 'compare notes'.
To anyone who is offered DAFNE, I would say 'go for it', though be aware that they didn't (at that time) advocate a LCHF lifestyle when I was there, they were very impressed by my reducing BGs as I progressed through the course (started LCHF a week before the course started). DAFNE gave me the confidence and knowledge to safely reduce the amount of insulin I needed to match my new lifestyle. I currently need NO insulin at all.