A mig welding course will lead to employment sooner based upon the hours of training required. Consider it close to learning how to change oil, replace a waterpump, and do a tune up. Something that can put you to work but far from being able to rebuild an engine, install it, and getting it to run.
MIG can be learned in a relatively short period of time to a level suitable for entry level employment. 40 to 80 hours can get many to a level suitable to jump from a minimum wage job. I recently had a student that never welded and was working on a road crew laying asphalt and 40 hour of training later, he is working at a company MIG welding 5th wheels for tractor trailers. On the other end, I have had students that completed a 2 year course at another college and it was difficult to watch them struggle with the most basice welding exercises. Abilities can be somewhat related to the drive and skills of the individual.
GMAW (Mig) as a lifelong career may be limiting. My 1st welding job was MIG as a HS student. Though I have used the process since and the skills gained have been valuable, the ability to perform all processes and possession of a core knowledge related to welding has been what has provided me a fulfilling career. The training time began in HS and has continued since.
Here is something that may be worth a read.
http://weldinginstructors.org/ga/2015/02/how-much-training-is-needed-to-be-a-welder/I looked at the course and it looked fine. Just remember, if 37.5 hours of training could lead to a well paying career with many options for employment, everyone wouild be doing it. There is a somewhat linear "effort to reward" relationship.
Have a great day!
Gerald Austin