We stayed in the cabins once and it was great. We loved it there! Yes, it will take FOREVER to get to the parks (or so it seems). We were there in January when it wasn't crowded and I timed it to the MK. It took 1 hour from the time we walked out the cabin door, until the time we got to the security line at MK. We did NOT have a golf cart.
When I went off on my own with my little kids, we used the WDW transportation only and it took a long time to get to the parks. Also, the teens in the family took the WDW transportation. But when my dh was with us, we drove our car...much faster!
We drove to Orlando and I packed the car with food. So, all the food was brought from home. It was nice having a "real" breakfast in the cabin before heading out to the parks. And it was great having some good snacks in the evening.
If you do get a cabin, you will love it. Request a room that is just a couple in from the main road. I had so many people on the DIS board tell me to do that, and I didn't. We had the very last cabin in the loop and with the little kids (and no stroller), it was a LOOOOONG walk to the bus stop. I had to end up taking turns carrying all the little children on my back.
HTH