I watched this last year, and I didnt particularly like it, but somehow I can't forget it, so I'll try writing a review. Most episodes follow the same scheme: The gang hangs around in Kuruma's office and gets knowledge of Interpol's plans, thanks to Takeshi's spying efforts. Then, Takeshi beats up a lot of guys in hilarious animal costumes. In a few episodes, Takeshi's backstory is treated, and occasionally, the relation between Takeshi and his father makes some progress. Apart from that, there not much overarching story that I remember. It is mainly animal costume guy of the week hunt. I didn't find art and sound remarkable. SometimesI remember the opening song.

The bad guys and their underlings had distinctive animal costumes. Apart from that, they were rather flat characters who where evil for no apparent reason and had some megalomaniac plans. I found them all dull.
Takeshi's gang was more fun. I especially liked the great detective Kuruma who always looked for excuses to avoid work and not to pay his rent. His dog was the most intelligent character in the series, but unfortunately, he could not speak.

After some episodes, it got stale, apart from the action between Takeshi's gang members. The bad guy hunt got boring. And - I found the violence displayed more and more disturbing. Not because it was gory, rather because of the casual way violence was performed. Takeshi beats great numbers of animal costume guys to death and does not really seem to give a second thought about it. Somehow, I found this more and more creepy the more I proceded, and it still haunts me.
For comparison: Right now, I watch Hokuto no Ken. In there, violence is celebrated, and Ken can make an enemy's death quite slow and cruel. But: If Ken is cruel against an enemy, he has decided to be so for a reason. I don't know why, but I find this much less disturbing than the casual killing in Hurricane Polimar.

Didn't like this series myself, but I would recommend to watch, so you can make your own picture.