Depends on your char skills. I had not too much problem with a gadget tricks char, did the instance on first try. It was mainly lots of stun moves (even if hardly affected) especially encasing the small pengbots in stasis fields, lots of rolls, shot him at distance with my bow and sticky bomb, rinse and repeat. The self heal anesthetic also helped as well as the most basic armor that you can buy with 1 mark each.
I found the Penguin much more difficult as I had to be wary of my hp way more often than with Pengbot maximus.
I have sampled every language, French is my favourite - fantastic language, especially to curse with. It's like wiping your ass with silk, I love it.
Meh. You block/roll away when he's spinning. Attack the smaller ones when they're around him so they explode. Not really as hard as people make it out to be once you know what to do, but it is still by far the hardest one mostly because the others are wicked easy.