The story of Heavy Object revolves around two young soldiers in the military, Qwenthur and Havia. Originally they have their own ambitions they want to achieve but, that soon goes down the drain when they become Object killing specialist. The story is somewhat an interesting take as many military anime tell their stories from the perspective of ace pilots or badass soldiers, in this case though it told through one being a training to be Heavy Object specialist (Qwenthur) and a radio analyst (Havia). This gives it a bit more of an interesting take to the story seeing that Object's in this story are very much like the Gundam's in those Gundam series, it goes into some pretty deep information about how both Qwenthur and Havia come up with their plans even if most of it is fictional. Another nice factor to the story is the comedy I can not recall how many times I just laughed my head off because of the situations they got themselves into, one moment they could be in a firefight with enemy soldiers then next they're engrossed with the scene of baby penguins. It may sound ridiculous at first but, as you watch more you come to like the comedy and the lengths it goes to ease the tensions. The best I can explain is if 21 Jump Street was remade in Japan but, based on two soldiers and in anime format.
The art is pretty good something you should expect from a studio like Kadokawa, the sceneries are done nicely as are the character models. The Heavy Objects however are a bit hit and miss sometimes they can look great mainly in fight scenes (and even then its just above average), it's because of the CGI but then I'm not even sure what I saw was normal animation or CGI. It's like the studio couldn't decide what they wanted to do there would be scenes that looked CGI then they'd look like any typical animation. Even some of the environmental effects such as water and explosives can look weird like out of a video games in many cases.
The sound was pretty good, the sound effects of the weapons were nice from the massive howitzer like cannons on the Baby Magnum down to the Indigo laser weapons even to simple assault rifles that the infantry use they sound like they should do. The voice acting was very good, I watched the dubbed and usually I don't do that unless I'm really behind or just want to catch up on some shows, so in my opinion you won't have any problems with the dubbed version. The opening songs are great both done by the band ALL OUT the tunes are very fitting for the show.
The characters in my opinion are really enjoyable I love Qwenthur's snarky attitude when it comes to being a know it all about Object's and Havia's badass attitude to various situations, in many ways they are also similar both want to quit the military as soon as possible to achieve their ambitions, both have the hot's for most women and both just want a easy ride in the military. However it's their two varying attitudes to the situations they get themselves in that makes the two characters work as they're jokes and conversations bounce off of one another as if you were watching just two normal guys in the real world. Milinda (I hope I spelt that right haha) is a likeable character I'm a big softie when comes to Kuudere and Dandere characters so don't be surprised if I praise those stereotypes a lot. She has her serious attitude in fights which sometimes can get her into some pretty heated conversations especially with Juliet and her adorable side when she's just being herself around Qwenthur. I would talk about the other characters more but, I'll just say characters like Froyletta (I hope I spelt that right too) are also enjoyable to watch bringing her own comedic and story value into the mix. There are other side characters however, they either have so little screen time to really get a feel for them or they just die really quickly. And that's one thing this show has a habit of bringing in characters that give you a false perception that they have a bigger role in the story. So get use to either characters dying or just disappearing from the show entirely.
Although there are a few nit picky things I have said it is still and enjoyable show to delve into especially for it's characters and set pieces for the story.
Overall it is a very good show, it offers a bit many genres such as comedy, mecha, military etc. However if you hate those genres you're not going to like this show. They did seem to leave it on a cliff-hanger so if there is another season I would be to watch it on the other hand considering Heavy Object is an original anime we might not but, one could only hope!