We are fine with the security provided by the product compared to other suppliers. Although, we are also sure one can’t reach 100% security. Most importantly, Sophos Mobile helps us with ISO 27001 certification. 

The return on investment could be better if the product is used with other Sophos products. If you want to deploy Sophos Mobile as a single feature, module, or product, I would say that it's not the best solution.

We have found the ROI from this solution has been a 20% reduction in both time and resource use.

We have made a ROI calculation with all aspects of the mobile handling, administration and security which surprisingly is above 500% and a payback within the first year by (>300%). With these numbers nobody can afford NOT to invest in Sophos MDM. (Calculations are available on request).