Ok...
Ups:
.Helping people
."no day is the same as the day before" (at least when working 911

).
.Working outdoors
.Some great co-workers
.The "fun" of running "hot"
Downs:
.Underpaid and overworked.
.Fraud/Abuse of the system.
.Some not-so-great co-workers
.Being called "Ambualnce Drivers"
.YOU, as a provider are a target of abuse from patients/the public.
.In many places, EMS is the stepchild of the fire department
.In some places the EMS providers are treated as second-class citizens by the Fire Department brothers they work with day in/day out.
.Working inside, outside, in a ditch on the side of a road at 3am in a thunderstorm.
.EMS takes a great toll on your body - many providers end up out of the field "in their prime" becuase of life-changing back injuries, knee injuries, and other injuries.
That said - can I see myself wanting to do anything else as a carrer?
HECK NO!!!
If I/we can help you in any way... let us know.