From my experience (started Dual DBA of SMC and Universidad Mayor since 5 months), i must admit the work load is high. The supervisors are very committed.. I really was pleased (and surprised) as I sent back the first assignment to the supervisor that i got one day after a thorough Feedback with helpful remarks and recommendations. The supervisor will define a delivery plan, once you begin working on a certain module...and believe me...they contact you and remind you to stick to your delivery plans....
It is a mixture of theoretical, research and practical work with a high portion of intensive case studies on several themes...
I had a MBA from a world class business school (Top ten ranking worldwide, with all possible accreditations)...and I must admit, the assistance I am getting now from SMC is considerably better than i had in that school...
it now depends on how risk-averse one wishes / is ready to be. I am living in Germany, and I am pretty sure, that in the near future SMC will be recognized in Switzerland....
My personal motivation, was not only to get a title or degree (although the degree also matters for me!), it is more to get specialized in one subject area (in my case corporate finance)... The MBA gave me a general and borad understanding of several subjects and now I am investing my time and effort to specialize...
I hope this would help!
Samuel