I also agree that psychodynamic, psychoanalytical, and analytical psychology are all generally much more rigorous than other approaches (i.e. person-centred, CBT, counselling).
For example, my training was in psychodynamic psychotherapy.
We had to be in therapy once a week, though many of us chose to be in two or three times a week.
We had supervision every week.
We had to undertake 300 training hours as trainee therapists - and we generally couldn't start seeing clients until we had been at the institute for 6 months.
The training itself (both practical and theoretical) lasted 3 years full time, or 4 years part time. That only qualified us to see someone once a week.
If we wanted to see someone twice a week or more, it required a further qualification of several years. Psychoanalysis or Analytical Psychology, for example, is about seven years of training; asks that you are in your own analysis for at least two years - after which time you can see someone up to five times a week (and, yes, there are people who go to analysts that often, and sometimes for years).