A lot to be said in favor of the guillotine, particularly for use with the jihadi who I've heard have the superstition that they cannot go to the islamonazi paradise for their 72 virgins if they don't have their heads.
In addition, the guillotine can be used for efficiently chopping cabbage for the meals in the pen when there are no executions scheduled.
If the death row delays would go away, the poor guillotine would not suffer downtime for many years to come. But, alas …