Problem with Cheakamus, if you are coming from South, is longer drive time. Also access road used to be quite rough, don't know if it improved now.
But yes, hike is quite lovely once above treeline. With enough energy one can even do a loop, up to Gentian ridge from Helm Campground, traverse all the way to Gentian Peak, then down to Pano ridge and loopback to main artery and out. August/Sep timeframe trip, not now. I traversed Gentian ridge from Helm on approach to Castle Towers
, and to this day it stands as probably best ridgewalk on BC Coast
[Black Tusk from Start of Gentian Ridge. Helm Campground would be lower extreme right]
[Further along Gentian Ridge; Gentian Peak in center left, Pano ridge right]