I have always considered training a bit of a vacation. I have an adult beverage most nights during training. I have 4 types and an FE from UAL, and one from CAL.

I will skip the gory details. The big paintbrush is this:

UAL:
After 4 weeks and little stress, excellent standardization, and great instructors, I felt very knowledgeable and passed my check ride. I stayed in a nice hotel, downtown, with lots of stuff to do.

CAL:
After 6 weeks, a little stress caused by zero standardization, and also with great instructors, I passed my check ride. If this was my first 121 rating course I would say at the end I would have had extremely poor knowledge of systems, and what is and is not important to know. My U-hire sim partner and myself shook our heads in disbelief for most of the 6 weeks. I stayed 8 weeks in a nice hotel, in an industrial/slum part of IAH, with very little within walking distance.

The CAL instructors (pilots) all had great attitudes. But the "system" in which they worked simply didn't require any standardization.