Cox Connect Assist?

Ok so one of my good friends needs some help with her internet and Cox told her about Connect Assist. I’ve done a fair amount of research to know the modem is downgraded to an older, no longer being made model. There also seems to be a professional install involved. Is that true or can she install herself? I helped her with the last one. Fairly straightforward. Her modem is a panoramic with a speed of 100. She relies on her internet and doesn’t have cable.

So the questions are:

Is the service significantly worse with the older modem, I.e, drop offs, slower, etc?

Is the professional install required?

How is the modem shipped? Signature required?

Anything else we should know about?

TIA.