I endorse what everyone has posted so far. To me, Glacier is a magical, wonderful place. While I have not done the route you have requested, I do think it will be a wonderful experience for you.
Some thoughts:
o be sure to take rain gear; it can rain there for days at a time;
o be sure to talk with park rangers about bear activity; use of bear bags/canisters, etc.; and how you should cope with the possibility of encounters. There are indeed grizzlies there, albeit chances of encounters are low.
Some day hikes:
o Swiftcurrent Motel area trailhead to Iceberg Lake;
o Many Glacier Hotel area to Grinnell Glacier;
o Logan Pass visitor center hike to Hidden Lake overlook;
o Avalanche Lake hike from trailhead at Going to the Sun Road;
o Highline trail hike to Granite Park chalet with start at Logan Pass, return on trail to The Loop and hitch-hike back to Logan Pass;
I am glad that you are staying at the Many Glacier Hotel. This magnificent hotel is my favorite of any hotel that I have stayed in for my entire life, including quite a few 5 star hotels. It is not the amenities or luxuries, but the spirit of the place that I love. Several times when I have stayed there, one could see, from the hotel lobby, bears on the slopes nearby!
Have a great trip!