They've frozen and revived an animal kidney. Proving that cells, and the complex machinery in them, can be preserved intact and revived even today. I believe a few worms were also successfully revived with their brains still functioning fine.

Personally I think it's very unlikely that cryopreservation destroys the information of the brain. The connectome, your learned synapses and behaviors, and memories are probably preserved.

Revival though is much more complicated. I don't expect anyone to be revived pre-singularity, so waiting for a successful revival of a mouse is a bit silly. Preserving things is a lot easier than reconstructing them. But there is nothing in principle preventing it from being done.

Lastly even if some information isn't preserved, I don't think you would be brain damaged. The worst case is amnesia. But if they have the power to revive a brain from ice and rebuild the rest of your body, surely they could fix brain damage and get your neurons working again to a normal state.