Pretty fun. Hard to call it "freeze tubing" this January. Not a bunch of large fish but the numbers are good from the launch ramp to the inlet. Get your streamers down 10 feet. Still water nymphing has also been a good way to get bent especially on the warm high pressure days. Gillies, crystal tigers, crystal pupa's #16-18. Work the drop-off on the west side closer to the inlet.
The river above the rez is also fishing well and I prefer to fish here when possible. You will be hard pressed to find a better combo that a #12-14 Stimulator suspending a #16-18 crystal tiger midge or olive zebra in this section.