Maybe so. I found that among the professors at my school only a handful had personalities that were at all engaging. The remainder ran the gamut from barely tolerable to completely unacceptable. You can get a sense of that factor in the first lecture.
You can also get a good sense of that factor by asking any person who has ever taken a class from that professor. This achieves the same objective, with a little more work and a little less rudeness from you (or whoever it is in this situation).
