Results vary depending on the health of your LinkedIn account and the industry you're targeting. We recommend you read our case studies so you can see the variety of industries we've been able to help.
A 'typical' campaign will see 1/3 connection requests being accepted and in 1/4 prospects replying to your messages. From those who reply, depending on your offer, we typically see 3-5 qualified leads per week, with 30-50% of those converting into actual sales calls taking place.
In terms of brand awareness, we've had clients impressions range from 30,000 - 170,000 across 30 days.
Depending on the number of existing connections you have, we have seen the typical network growth for the following:
100 - 500 connections - 150%+ growth across 90 days.
750 - 1250 connections - 100%+ growth across 90 days.
1,250 - 10,000 connections - 5-50%+ growth across 90 days.
As long as you're looking B2B opportunities - LinkedIn will work for you.