Avantages
Great employer for vocational trainees (I can only speak for the business focused vocational trainings) with a good salary, a lot of moving around within the company to see many different departments, mostly modern facilities (also depending on individual departments) and lots of on-site training and team building. Overall a great 3 years with a lot of support. A completed vocational training exposes you to many different departments and areas of expertise as well as teaches you skills that will highly benefit your employability in any kind of industry.
Inconvénients
Despite having been offered a full-time position after vocational training, no real flexibility in career progression (PA is supposed to stay PA) and chances for development highly depending on your individual department and their employee situation/support from your boss and HR department. The same applies to the advertised subsidised evening/weekend Bachelor's degree, with little chances of a higher position or development within a department