Hi there,
I breastfed my son for a year (five years ago) and I'm currently still exclusively feeding my almost-five-month old baby girl. I had loads of hypos both times for the first six weeks or so, but since that initial spell, I rarely have any now as things just settle down. I'm type 1, on a pump, with Libre. My bedside table was full of cartons of orange juice, cereal bars, water and Infacol those first few weeks, but it's so worth it. I can't remember how often I snacked, but I'd say through the night was probably when I needed more carbs. I love the flexibility it gives me, and as I bought a breastfeeding cover (personal preference), I feel totally relaxed to feed her anywhere (bus stop, a castle ruin - ha ha - cafes, and once when I was walking as I had to get somewhere quickly). If you can get through the first hard-going weeks, it is - in my opinion - much easier and convenient, but each to their own and you have to do what's right for you.
Best of luck.