I was trying since a couple of years to synchronize Mindmanager and Toodledo as both tools are the ultimate tools in their range.
The only correct solution I found is quite complicated :
Toodledoo - Gsync - Outlook - Mindmanager but it is stable an reliable.
Advantage : tags are well managed and task management is working well on each tool.
Disadvantage : the step Gsync - Outlook is quite heavy to manage and it is based on a physical machine (a full cloud sync would be better)