just finished watching Virus Buster Serge and let me tell you i regret it. It is hands down one of the worst animes i have seen for a while. What makes it worse is that it seemed to have all the right elements for a good show, alien invasion, shady corporations, political intrigue, battles with mech-suits, etc.  The problem with the show is two-fold , first the plot is a mess; and second characters just are not that interesting so that when the story has its moments you are still bored stupid.  take Raven, for example, the leader of the team in the series. He is portrayed to be similiar to Gendo Ikari from Evangelion in that he leads the good guys but he is manipulating everything behind the scenes to achieve his own goals. But whereas Gendo was interesting to watch Raven does not even come close, his dialogue is just so flat and the writing so bad that you don't care. The same argument can be made for most of the main cast, they are nothing original and are similar to other characters you would have come across before, but they just lack a personality.

Avoid this show at all costs

I'm not going to beat around the bush here, Heat Guy J is excellent. It is the kind of series you come across every once in a while where you know next to nothing about it and on paper it does not sound that great but once you watch the first few episodes it hooks you in and provides hours of solid entertainment. The reason i liked it so much is 2-fold. First,  it has got some great characters, and some really memorable characters: my personal favorites are clair leonelli, the head of the cities biggest crime family , and Buma, a sword-fighting werewolf who not only looks cool but has one of the most entertaining sub-plots in the series:  and second, the story is extremely well told and is an interesting tale touching on many different themes and as a piece of mafia/crime fiction it could hold its own against many similar tales. The character designs are excellent across the board with one exception, Daisuke's brother Shun could easily pass for the twin brother of Integra from Hellsing, and the dub is extremely good here. a lot of dubs are poor but here it  is well casted and all the voice actors do a great job and fit their respective characters to a tee. The story really is the star of the series in my opinion . Once the main plot really starts to develop it moves at a great pace and there is not that many episodes i would consider filler. There are some great twists in the second half of the series and some of them really throw you off guard. The story deals a lot with the theme of revenge and to be specific the idea of taking revenge, versus letting go of your hate. Personally i find the mark of a good series is that when you are not watching it you are thinking about and trying to figure out whats going on, and Heat Guy made me do this a lot.
The animation is also excellent and mixes in some CG/3D effects into some sequences and these sequences look good more than they don't. The action is fast paced and well animated.

Overall this is an excellent series. The main characters Daisuke and J are fun to watch and have a great partnership and most of the support characters are equally if not more entertaining. It's got a great story and excellent animation and voice acting and i would reccomend it to any anime fan.