Let me start of by saying I enjoyed instructing. I was in college, had low living cost, going to school part time (helped break the day up), flew with students mostly my age, worked for a place where I didnt have to drum up students, Pretty good superiors, and chances for multi. Thats nearly a perfect world as far as CFIing goes.
Ok, here are some things that really suck and keep you striving for me. Things I did Not like about CFIing in no real order.
1. Low Pay.
2. They have that smell that hundreds have puked in them since 1969.
3. Radios almost always sucked. ATC nearly hated to here your plane thats been up 8 times already that day with the same Dern radio problem, but still hasnt been fixed. Here was one of my favorites, Squawk 5232. You put that into the box and it comes on there screen as 7442. So then you have to try to out think the box like its some WWII enigma machine. Of course it never worked.
4. Like Lazy 8s? I dont and I never will. That goes for 8s on pylons and host of other ones. How bout doing them 4 hours out of a day.
5. You rarely get to fly unless you pull the "let me demonstrate".
6. Having to describe in detail to ATC what you were doing and how many approaches you want to shoot and which one your landing out of etc..AHHHH
7. Reschedules...due to wx, crap airplane, no show student etc
8. Liabilty of sending someone off in an airplane that you arent in.
9. CFI Staff Meetings to discuss the traffic pattern, again.
10. Late nite Cross Countries, With a miserable ground speed of 75 knots.
11. Late nite cross countries where you dont go, just sign a pilot off to go.
12. The Chuck Yeager Student whose got all the answers, but none of the "Right Stuff"
13. Seeing the same dull airport over and over again, you may get to go on a journey to that airport 10 miles away if your lucky today!
14. Have to pull a smaller heater up to the airplane in the winter and use some crazy thing to de-ice it with, NICE!
15. Hot as can be in the summer, at least my one arm out the window is nice and cool. Then there is that one airplane thats window didnt open, nice touch.
16. The cut throat environment of trying to get the hell out, and watching as some of that prize flight time went to those who had other...ummm....qualifications?
Thats enough for now, I could go on. I could probably make a list about regional flying too, But to compare is not even in the same ballpark. My point is that you need to continue to strive to get the hell out, unless you are one of the few who are carreer teachers/pilots. This isnt directed at anyone really on this thread and probably go somewhere else, imagine me posting something like that!