Package: Quark Unmetered / Heat+ ("+" means increase traffic)
I've tried their service twice.
As for the speed, both of them are stable. They reached their max speed frequently.
So I will give it a 10 for speed.
Support is good. It's quite efficient.
They answered my question really fast when I opened tickets.
Most questions are answered within 1 hour.
Sometimes they answered my question within 5 minutes.
It's the fastest one in all seedboxes I've used.
Interface is very easy to use and friendly to customer. You can reboot the box by clicking on the button.
In addition, they can move your data from another providers to their box for free, which is also convenient.
In Heat plan, if you run out of traffic and you still have many days left,
you can ask them to upgrade your box to a higher one by sacrificing some days.
(It's done instantly. No need to wait.) It's flexible.
Basically this one is enough for most of the circumstances.