Argentina - Zoo Lujan and Temaiken Biopark?

Does anyone have any experience with either of these zoos/parks? Is it worth the journey from BsAs to check them out?

It seems pretty cool to be able to touch the big animals at Zoo Lujan but I don't want it to be some cheap touristy experience where the animals are drugged/look miserable.

Also not too interested in getting mauled by an animal much larger than I, but would love to hear some first hand info from those who have been.

Thanks

Temaiken is awesome.

Skip Lujan..... and Temaiken, as posted above, is an excellent Park and very well worth the trip out.