We were at Dantes on 2/20 and found it to be a great view on the valley. Be prepared for some wind and cooler tempatures (we ended up wearing our winter coats and gloves) but the view is worth it. You get a good view from the parking lot but hike the 1/4 mile out to the overlook for a better view.
The drive up is paved and pretty easy, the last 1/4 is a bit twisty and steep but nothing to worry about. Overall it took us about 1/2 hour to make the drive.