We had G+ for the entirety of our visit (1/25 through 2/2), and used it to our advantage (I booked at 7am every day and was diligent to book the next ride right at 120 minutes or after we had tapped into our first LL ride). ILL rides were mostly sold out by 9am in MK and HS. We used our first HS selection on Smuggler's Run and by the time we exited the ride at 10:30, the stand by line was 85 minutes and G+ return times were after 7PM. RotR was 2.5 hours in standby at 9:30 am with no ILL available. TZToT was our next selection and by the time we rode that (before noon), G+ selections were after 8:30 PM.
I was frankly shocked at the crowd levels for late Jan/early Feb. We last went in Feb 2016 and walked on many popular rides most days with little to no wait. Not so this trip. We still had a wonderful time, but I planned most days down to the 1/2 hour. I know not a lot of people like to do this, and I get it, but anyone trying to wing it during the time we were there would likely have been pretty disappointed. Fricking Jungle Cruise was a huge wait ALL THE TIME. I expect that from Peter Pan, but c'mon, Jungle Cruise?
We did use free time to see anything and everything we had never done before. Sat through stage shows and presentations we had never done (The animation class at AK was a ton of fun for us (both adults over 50)). We rode the skyliner and friendship boats all over the place and visited resorts we had never been to. It made for a much more interesting trip.