I was happy to see that AppSumo finally is offering a LinkedIn Automation lifetime deal once again. Unfortunately, this one doesn't seem to be finished yet.
The app by itself is very limited, very basic. Extra functions cost credits.
Also, there are a lot of issues, some of them I have reported already: variables are just not filled in (company name) and sent as a "space" symbol. Which leads to embarrassing encounters and makes it super obvious it is an automated message.
Also, the numbers in the backend are not being tracked correctly. E.g. Apparently, according to the software, I've sent more follow-up messages already than I have new connections. Which is simply not possible, because the follow-up obviously is only sent, when I have successfully connected to someone.

Cannot recommend.