I will give this episode an 8, just climbing up from 7. Most of the episode felt more like Star Trek should be, and the last episode should have kicked the series off, with this one continuing the curve upward.
It was a big mistake to have the first two episodes, and that hurt the series a good bit for me.
The rescue of the miners and dealing with the tardigrade were both very Star Trek, to me. Those had almost a TOS feel, almost.
The Klingons are still the weakest part of the series, and there simply seems no real grasp of the writers knowing how the Klingons should be. Being cannibals was very unsettling, and this kind of radical departure (especially given they are not at all like this in TOS - not the way they look, but the way they are) is really something they need to do a hell of a lot of explaining to show how they end up in TOS, save these Klingons being totally exterminated by the ones we see in TOS, assuming the rule of the Empire from these Klingons.