I used LHH when I was RIFd in 2017
I agree with this poster. I was RIFFed in May 2018. They are understaffed, but will help you build a decent resume if you do your part. Everyone I've met there has been professional and helpful, but won't do your job search for you.
If you've not looked for a job in more than 3 years, go thru their prerecorded material. It's relevant and helpful. After you get past the shock and awe, take the time to follow their program. It has merit.
They will also ring in specialists, such as 401k transition or how to get health insurance if you end up as a 1099 contractor. These are pretty useful onsite meetings.
I especially recommend you review the LHH resume, and related webinars and especially linkedin information, as that is probably #2 after personal networking for job leads that actually convert to legit interviews (so far). Use meetup.com to look for professional meetup's pertinent to your skills to build your network.
By the way, get a support network, it can get lonely, and you will feel useless, unproductive, etc... as LHH says, unemployment is your situation, not your identity. Get a productive routine going including exercise. (Can't emphasize how exercise has helped me and I HATE exercise.)
Consider cooking some of those complex recipes you never had time for or finally fixing the photo album, or other tasks so when you're not looking you can feel like you're still a productive human being. While you will be hunting for a job a lot, you need to have some healthy outlets.
Finally, don't take this personally. VZ is trying to survive and stay relevant just like you. I've met plenty of non-VZ unemployed in my little trial and NO ONE has a package as good as mine... and I only got two weeks/per year. Some of these fellow unemployed folks worked for big pharma and other companies rolling in dough.
I will always value my tenure at Verizon.