As much as I love the ease of use of Zotero, I won't be using it much until the APA format issues are worked out. I am new to APA formatting and was relying on Zotero for the proper formatting. After 2 research papers received poor marks for APA format, for my last paper, I generated the bibiography once again in Zotero and then spent 2 days correcting 5 pages of references manually -- all while trying to figure out the new 6th edition. In the interest of time, I won't be using Zotero to generate my bibliograph for my upcoming papers, but I'll be staying tuned to see that all/most of the kinks are worked out.
I still like zotero, otherwise, though.

I agree -- not just your personal rant, it's my rant as well. :) It's something like 30% of my grade -- ugh. Actually, I'm still using zotero right now, as a matter of fact -- as a repository, then generating one bibliography at a time as I use the cite in my paper by saving it to the clipboard and then pasting it to my References -- then I make sure it's properly formatted now instead of waiting until my paper is due to fix all the references. I have to say, though, that having to dig through the APA 6th ed did help me. Now I ignore fields in zotero that I'm not supposed to have in my references and r I'm really careful of how I'm entering in citations, but, for the most part, I'm having to do a lot of manual fixes, because I use a lot of journal and doi entries.

thanks for the rant, though -- you justified how I feel about it!

which problem in particular?
Amengual, M. (2010). The Politics of Labor and Environmental Regulation in Argentina: Constructing State-Society Relations for Effective Implementation (Phd Dissertation). MIT, Cambridge, MA.

Is the current output and that looks correct to me.

https://www.zotero.org/support/kb/sentence_casing (so data is entered incorrectly for the example I give above - I never use APA, so for me that doesn't matter)