I tested a few PDF apps this summer and posted my comments here:
Highlights is a beautiful app. I did enjoy it, but I had a problem of it not remembering my reading place, which made it unviable for me because I often don’t finish a paper in one sitting.
I settled on the free version of PDFExpert, but am still having sync issues between PDFExpert and DTTG, so patience is required
Having said that, I kept Highlights on my iPad because I did like it…
