I started skiing at Blue Knob back in the 1970's.
It gets COLD! And mist clouds are very common over the mountain in the late season.
As other have said, the lifts are slow... 15 minutes from bottom to top. But lift lines are minimal, even at peak times.
The lodge bites... if you are comparing it to a Colorado resort it would not even qualify as a lodge. But it is a place to get some simple food, a drink, warm up, and head back out to the slopes.
The one thing that Blue Knob is PERFECT for is skiing. Nice long runs... some of them over a mile long. Long vertical drop so even the diamond and double diamond slopes have significant length. If you want short little runs, time to socialize in a lift line, and more "atmosphere", then go to Seven Springs. If you just want to fly down a mountain over and over and enjoy skiing, Blue Knob is about the best place in the Mid-Atlantic to do it.