If you have not tried Vayne yet, you need to give it a whirl. Its scraping abilities are absolutely fantastic, especially the cookieless browser one. It's fast, and the amount of information that it gives back is second to none. I've used several different LinkedIn scrapers, and the amount of information Vayne provides for you in the CSV is absolutely fantastic. Review collected by and hosted on G2.com.

It's hard to say downside, but if things are busy, your scraping can be put in a queue. That could take a few minutes for it to eventually reach you. Downside-wise, I don't consider it one unless you're in a hurry. Review collected by and hosted on G2.com.