I have to admit that I like the new update (this is my first update since I got my Touch). The shelves are a big plus for me, and the way the dictionary is displayed now is much better.
I also like more the new home page compared to the previous one (I still need to get used with the new layout, but I like it).
The fonts are indeed look a little different and I'm still playing with them to find one I like (and the new font features are nice).
The extra tap to see the clock is not a biggie, but I liked more before.
So, from my point of view this update is a step forward from 1.9.17.