I had GD with my last pregnancy (out of 4), and ended up on insulin once per day, mainly because my fasting # was elevated. During the day it seemed to be ok. All the extra monitoring was a big hassle, but I got through it one day at a time. Giving myself a shot once a day was, surprisingly, no big deal, once I got over the emotional part of being 'defective'.
The biggest hassle came towards the end, when the OB/GYNs that my midwife works through started trying to freak me out about needing to deliver this baby asap, trying to make me fear that my placenta would conk out and the baby would die, would be too big to be delivered, etc. etc. There were no signs of any medical problem, either with my placenta or with the baby, and I felt very strongly that I would rather trust my body, and only alter my plans if there was a clear medical indication to do so. In the end I had my best delivery ever - no meds, only pushed for 15 minutes or so, and gave birth to a very healthy 9#15oz baby boy with no residual blood sugar issues.
My advice is to read 'The Thinking Woman's Guide to a Better Birth', and read as much as you can about gestational diabetes. If your sugars are well controlled (which it sounds like they will be), your risks should not be significantly higher than for any other mom, at least due to this complication.
Best wishes for a healthy pregnancy, and a sweet and healthy baby. And don't forget, your well-being is just as important as that of your little one, and are linked together.