Absolutely! Before I went digital, the only cameras I ever owned were manual focus...but they typically had a split prism or other manual focus aid. I have always found manual focusing on AF SLRs to be vexing as they don't generallyhave this. Enter live view! It really is easyand fast.
I was going to head up to Yellowstone today, but it looks like we are locked in the Tetons (lol it could be worse). Snow has closed the South Entrance and the Teton Pass is chains only. If i buy chains, I am not moving back to New York.