Pros
The actual day-to-day work is very enjoyable. Customer interactions provide immediate and honest feedback on your work, good or bad. The technical aspects of installation and troubleshooting internet, video, and telephone are mentally stimulating, and every day offers new challenges. Freedom to make some decisions on the fly promotes independence and improves many important skills.
Cons
There seems to be an increasing amount of "busywork" and redundant paperwork. The technical supervisors are given a mandate to physically grade technicians' work and focus on things they have done wrong. Our local supervisor was praised for doing this where neighboring supervisors were not. The standards of quality for technical work have basic requirements that don't change: customer satisfaction, cable and networking line mounting procedures, cleanliness of work. However, the finer points have Charter-defined standards that are in a constant state of flux, aspects that don't affect safety, product performance, or customer satisfaction. These aspects are what supervisors can point out and rate poorly. These ratings directly affect the technicians' rate of pay.