Geometry will not transfer, because this is not part of the cdb file. So just nodes and elements.
The normal standard elements like brick, wedge, tetra, 4 nodes shell etc can transfer, but some special elements like contacts not. The special features of the elements (some informations for the solver etc.) normaly also is not transfered. So check it!
But after it I also say FEMFAT is the best solution to do this job.
Irwin