Thanks for all the replies - much appreciated.
As sad as it was, I felt it was a good experience. It brought me and sis closer. The three of us spent 3 solid weeks of good quality family time together, something which we probably haven't had in 4 decades. I think it also made both me and sis more comfortable with the dying process helping mom through it as her body was literally shutting down. We had a hospice organization supporting us along the way and they were incredible with the slew of resources they had at hand ready to go...helping us, coaching us, and providing everything we needed to help make mom comfortable.
When the doctor said to me "You could either leave her in the hospital to let things play out, or you can take her home and make her comfortable", there was no thought, I instantly said that we're taking her home. I wasn't going to leave her in the hospital to die if it wasn't necessary.