[Mesnick]

A good, interesting filler. It follows Reiji's standard investigation. Teaming up with local detectives, Infinity stops an arms dealer who, in addition to the Emorgear, also has a huge drill in his arsenal. I also liked that this episode addressed two minor flaws that were present in the previous ones:
1) Emphasized the unusualness of the land being visited;
2) Made Gavarion's drill-boosting feature memorable.
Because the Galactic Police is a huge organization and Reiji and his friends barely work on Gavarion, it's much less memorable than Sentai Mecha. Even despite the excellent and varied action. But similar plots will definitely help fix that.
And of course, Gavan ant is great, fun and unique. It also adds a lot of variety to the action. I hope we'll see Arimoto and Hanemura again.
However, the next episode promises to be less easy and much more important. Because Reiji will team up with Setsuna again, and the mysterious merchant Emorgears, who travels through worlds, will finally reveal himself.
My impressions are extremely positive. I'm looking forward to what happens next.