Houston's NCTI
EMT-B
It's Basic class. The instructors here in Houston do a pretty good job of getting all the information you need in an entertaining manner. Go to class, read the book, you'll do fine. The instructors push really hard on just getting you into a mindset of being able to do some critical thinking.
Medic Class
I'm almost done with the NCTI Paramedic program in Houston. I don't know how it used to be (I hear it wasn't that great) but I know that it's changed over the last two years under the new instructors. They're pretty dedicated to changing the program and have high expectations and standards.
Our class had a high attrition rate and the class was pretty tough due to the accelerated pace. Didactic was a 9 month portion and we have 564 hours of clinicals to complete. The class itself was very engaging but also very challenging. To succeed you have to stay motivated and self-study. The high attrition rate was mainly because of out-of-class factors (family issues, work issues, etc), as this class moves fast and you have to be pretty committed to it.
The only folks who have made it to the clinical stage (no clinicals until completion of didactic) have had either a college education (a&p, english comp, basic college mathematics) or prior instruction in a&p, cardiac, pharmacology, pathophysiology. All of us have field experience and are working EMT-Bs.