I found their handling of the initial application process very unprofessional. I did a two-hour screening test for eBay. It was administered in Germany for a job based in the UK. I was initially asked to do the test between 8am and 6pm within 2 days of asking, despite the fact that I was working at the time. I was able to rearrange it for the evening.
The woman administering the test kept me waiting for half an hour from the agreed start time for the two hour timed test, which they emailed to me.
They never sent even a form rejection after the test, despite my taking the time to arrange to do a two-hour test at short notice. Even when I emailed (politely!) to follow up, they never bothered with the courtesy of a reply.