This tool is straightforward. When you need LinkedIn profile data fast, this is the tool you want. We had our LinkedIn campaigns running within 4 hours with this tool. Impressive.
The enrichment is fairly good, but be sure to always validate these mails. We validate the mail addresses with another service (already paid for) but GP offers email verification within their tool as well.
Please be aware that using that tools like GP can get your LinkedIn account to be blocked. Be gentle on the volume and work up your batch volume. This is were GP shines as it allows multiple users on 1 subscription and you can switch to another LinkedIn account to continue and let the other cool off.
So depending on what you have in place, this could really be a good and straight-forward tool to use on the channels LinkedIn and Mail. Review collected by and hosted on G2.com.