Bought 99ç Upgrade, but cannot write a review in the "Paid App"

5/22/15 Installed the latest upgrade on my iPad Air 2, anticipating big usability improvements after some communication with the Developer & reading his description of the changes in this major update.
Darn, Ive hit 3 problems already, the last one is a doozy and makes me VERY glad that I did not upgrade this app on my iPhone 5s yet, since the previous version on the iPhone still has better functionality in My Library, that the new version on iPad.
1) My Library: the iPad has a big screen, yet the display area of "My Library" still uses only about 2.5"x2.5" of it. No improvement there. So, I can still only see TWO TITLES at a time, in a My Library list that has ~30 titles.
2) My Library: some of us have lots of storage space, and read/listen to books fast, so we download DOZENS of titles to listen to during an overseas vacation. Especially given that I can only see 2 of those titles at a time, scrolling down like a madwoman to find the next book I want to hear, is a pain. No, its a PAIN. Sure wish hed given us a search/browse capability so we could list, say "all Edgar Rice Burroughs books in My Library". Or "all books with World in the title, in My Library".
3) Pause button is broken. Yep. Had to swipe up my Control Panel to use the iOS "pause button" to stop an audio book that I didnt want to listen to anyway. Did I mention that the "My Library" delete function is SO tricky to access with a left-swipe, that it takes 1 - 7 attempts to get the red "delete" square to appear? The thing is, some of those attempts result in the app thinking Ive selected the book to listen too right now, when I was swiping left each time, trying to delete the downloaded files on the dang title. Then I cant use the "pause" button. Oh yeah, that woke my hubbie up, thanks... :-p

I thought it was very worth it, to upgrade from "free" app to the "no-ads, Paid" version. I also had the intent to write an explanatory Review on the "paid" version in Apple Store, for all those users who complain about the readers and the titles and authors available in the Free Downloads of this App. But I apparently dont qualify as a "purchaser" of the Paid version, because I paid to upgrade my Free version of the App.
Anyway, this App is very useful. Sure, there are some usability improvements to the "My Library" for the iPad, and search functionality improvements to be made (Developer responded very favorably to my emailed feedback & suggestions, btw) ... but otherwise, its GREAT!
I want to mention... this App access the Librivox Projects online database for all its FREE books! This Developer has no control over what that separate organization does, so dont downgrade his App if you are only upset about the free titles and "plus" titles... they are all coming from Librivox. I appreciate that Librivox is working to make these wonderful older books more accessible, that they use volunteer readers (Im guessing that the reader gets to pick the book they will make a recording of), that they try to make better "plus" versions of favorite books by somehow enticing the better volunteer readers to do them, in better recording environments. I know there are some newer books available to buy with this App, but to me, its primary purpose is to make the Librivox titles VERY accessible to the mobile device owner. Im glad the Developer has an arrangement with the people at Librivox!

bcampbell about Audiobooks, v6.2.1