Lots and lots of hikers up there. Less going up into Glacier Basin but still plenty of folks. Its a popular place and very easy access from the old road at Barlow Pass or the new road past the pass. Easy bike ride in though.
There is a bike rack in the town site so you can ride in and lock it up then backpack up into the alpine area. Seen 1 bear and 2 deer but no elk in the 4 times I've been up there. All in summer time though not in the late summer/fall.