As a warning, Muv-Luv has been infamous for some pretty gory scenes and the television series so far has been no exception. The first episode of Total Eclipse focused primarily on the backstory of the series through mech pilot Yui Takamura. While original I was disappointed with the slow pacing, the following episode was gut-wrenching quite literally. The second episode tries to illustrate the true horror of the alien invaders and probably contained some of the most explicit anime gore shown in years.
As for the actual quality of the show, there were some cutbacks on the animation quality in certain scenes especially during camera pans and the mechs sometimes moved awkwardly. The characters themselves do look great, and fans will appreciate the amount of effort they went into the fanservice.
For anyone new to the Muv-Luv series, I would highly recommend trying to push past the first couple episodes if you can stomach it as the meat of the show starts from the third episode. While I am definitely looking forward to see more giant robot blasting aliens to bits, I probably would be lying to myself if I said I didn't want to see more of the female casts in suggestive situations.