Yep, it's doable, you get very dark, dense negs. They scan in OK though. When I did mine, I treated the film as if it was an "average" B&W film of the same speed, e.g. developed at 20C and for ISO100 used the time quoted for films like FP4 etc.
When scanned you get some odd colours !
Here's a couple I did a couple of years ago: