Case for what? Visitor visa? PR application? Citizenship? Etc.
Since you did not mention the specific application, in general, it means that the application will most certainly be approved because everything adheres to CIC's guidelines.
Possible factors for a case that is not straightforward: criminal records, medical inadmissibility, prior immigration violations, misrepresentation, etc. This is typically when it would be a good idea to hire an immigration lawyer.
If you don't have any complications, then the case is straightforward, and you can easily apply on your own.