I'm in the process of switching dry dog food for Sally. I did some research, and switched to a Diamond brand for large breeds. It's not that much more expensive than the Iams I was buying, and it got good reviews. Plus I can patronize the local feed store, which I like to do when I can.
I've been mixing about half and half for the last three mornings, and she's tolerating it well. Tolerating it well may be a bit of an understatement. When I was pouring the food into the plastic bin in the kitchen (still have to buy another bin to put the rest of the stuff in to store in the basement), she was right there, trying to gobble it up as it poured.
This morning, I woke up around 4 am to the sounds of her pacing outside my door. She sleeps in the living room because I'm such a light sleeper and she grumbles and shifts a lot. I called out for her to go lay down, which she did. From this I can only conclude that she wasn't in urgent need of going outside for a potty break, and wanted to get more of the yummy new food.
I got up at my regular time, and I'd like to report that at this moment, she is sleeping on my bed with a full tummy. Maybe I should call home a few times today to wake HER up out of a sound sleep...