There are only 2 of us, so the cost of an iLL$ is of no significance to us (in the grand scheme of the cost of a WDW vacation).
I am staunchly opposed to G+ just for the fact they change your return time often (and it happens with iLL$ purchases too, but since I'm typically only going for Rise only, I am willing to risk it for one ride, not every dang ride we do).
Our DHS day was a perfect day....walked on or waited less than 15 min for about every ride from park opening to 12:30 (ToT, RnRC, Slinky Dog, TSMM, MMRR, food at Ronto's, Smuggler's Run, did our iLL$ for Rise, then Star Tours). Done at 12:30 and in the pool at our resort by 1:30pm.