A timely question, indeed. We too have seen USB 3.0 hubs act awfully finicky -- particularly when mixing USB 3.0 and 2.0 HDDs -- so we'd love to hear what one(s) are working out for folks. Shout it out in comments below!
"I finally got a new laptop with a lone USB 3.0 port. I'm now looking at getting a USB 3.0 hub with a power adapter so I can use both of my USB 3.0 hard drives at faster speeds. I've read lots of horror stories where some hubs either don't come with power adapters -- and as a consequence the portable drives don't work with them properly -- or they are designed poorly which results in USB 2.0 speeds. Or, the hard drives keep getting disconnected. Do your readers have any suggestions or experience using USB 3.0 hubs? Thanks!"