Severance agreement arrived, need a second opinion - what worked for you?

The company sent a severance agreement with a release of claims, and I am unsure what to do. There is a non-disparagement clause. Did anyone negotiate and succeed?

Thanks for writing this out. I went through something close to it last year, and it got easier once I kept a simple log of every call and form.

An hour with an employment lawyer cost me a small fee and made me feel much safer about signing.