I ran a test to see useArtemis.

To be fair, I purchased Closely, ZeroIn, LeadRocks and useArtemis.

Here is how useArtemis stacks up.
Closely rocks, as it can prospect from outside LinkedIn. But it also has a one-off email grabber. That works well.
LeadRocks has the same abilty - bulk contact scraping and LinkedIn scraping per page.

useArtemis does not have a buk tool that works - for me.
I tried to get it to target staffing-agencies. It failed.
So I thought I'd try the LinkedIn search.

Both useArtemis and ZeroIn are/were on Appsumo.
ZeroIn has improved a lot since I got it. I gave BOTH the same search.
United States, Michigan, "Staffing Agency". people search.

There were 61 pages for 609 prospects.
I restricted the scrape to 5 pages.
ZeroIn was set to delay 5 min between page.
Result: within 10 min, ZeroIn had 89 contact emails.
I think it ignored the page delay for background tasks.

Now useArtemis is still running the search, after almost 20 min.
I get no progress as to what's happening.

So, for now, I must give them 1-star.

Hopefully I'll see great, but slow results.

I'll update this as I get final testing.

I wrote this review now, as I was asked to by useArtemis for 1,000 extra credits per month.