Not worth it: it would have been faster and cheaper to do the application myself
I thought that using Entry LLC's Passport Renewal Assistance Service would speed up the passport renewal process. In fact, it did the opposite. I waited 3 weeks to receive the completed DS-82 form from Entry LLC and then had to redo it on the State Dept. website because it was missing some key information. I then had to get a printed passport photo despite having uploaded an "acceptable" photograph to the Entry LLC site. And the prepared mailing envelope from Entry LLC was labeled Expedited, which was going to mean the US government fee would be higher than the $130 fee I was told I would pay. I abandoned the Entry LLC Ready-to-Mail kit entirely and sent my re-done DS-82 and photograph from the Post Office using the normal Post Office service. Having sent my application on June 4th, I had my new passport in hand on June 13th, and my old, cancelled passport arrived on June 19th.