Good Morning, IloveTLRs,
I wouldn't use Dektol for general-purpose film developing. I understand that some press photographers from the mid-20th century occasionally used Dektol for film developing when they need results fast. If you're in a hurry and like lots of contrast and grain, Dektol will do the job.
In producing B & W slides by copying negatives, I have used Dektol diluted 1:1 for developing the old Kodak High Contrast Copy film. It worked quite well. I have also used Dektol, diluted about 1:15 or 1:30 to develop film used for contrast masking.