Ohh man, this is one of my faves!!!! Twisties like crazy down hill, with some very twisty, very "slow" curves. lol. Once you get down to about 2500 feet, the road straightens out and gets FAST. Passed a car on this lonely stretch at 110 mph. That will put a huge grin on your face. If you are looking to make a loop, I recommend taking Hwy 44 East from Redding to Mt Lassen, take the beautiful scenic cruise through Mt Lassen National Park (that drive alone is about 1.5 hours, give or take, but take more time as its so beautiful) then come back down to I-5 via 36 west. My wife and I do this on a saturday coming from Sacramento. We usually like to hang out in the park for a few hours before coming back home. We've done this a dozen times in the last 2 years. I-5 sucks, but who cares!!! You drive a MINI! Check it!