I was also one of those gals and only used Shimano for all my years on the bike. Mainly Ultegra & Dure Ace. When I won the Dolce there was no choice as it came with Sram Apex and wasn't sure if I would like it. The sales lady in the shop said it is very intuitive. She certainly was right. I found it to be snappier than Sram. My Amira with Sram Red changes gears in a real snappy way and really with both Apex & Red there is less effort in going from the lower chain ring to the top. If I had a choice at first I would have chose Shimano because that was all I knew and was comfortable. In this case I am glad the choice was made for me as I am very happy with the Sram. I also have small hands and fingers at 5'2".
2012 Specialized Amira S-Works
2012 Vita Elite
2011 Specialized Dolce Elite (raffle prize) - Riva Road 155
Ralaigh Tara Mtn Bike