Well, I have some bad news myself.
After having 6 sticks running on the Sipolar A-400 at around 4.8 Mh/s each, my hub just died today.
I have free electricity (at work) so I wasn't really worried about making a small amount of coin since it was just a fun hobby.
But now I'm looking at plunking down even more cash for another hub and I just don't want to deal with it

Take my warning: the Sipolar A-400 is
great until it dies.
I bought it for $66.74 on AliExpress and put it into service around Jan 10th.
So after about 4 months of constant use, it died.
Very sad!