Not so much as official reviews - more people on forums having high expectations of Lian Li cases and being moderately disappointed. Lots of talk of thin side panels, and hints that the case didn't meet their expectations.
These are just conclusions drawn from reading in forums, so don't take them as gospel!
I don't believe there is a perfect case out there. When choosing a case, especially a midi tower, I think it's more of a case of choosing the one whose faults have the least impact on your requirements. In the case of the Fortress, it could have been so much better if the fan filters had better access and the hard drive cages didn't impact on the airflow to the GPU. However, it really is a lovely looking case, and 180mm fans are a big attraction when you want quiet before overclocking.