Considering it's size and cost, I can't ding it too much for this but some of the material shows a lack of experience with the Pathfinder rules. For example, the primary ability for the Bookbonded Arcanist is rather flawed.
The granted ability gives you a special spell book with infinite pages (think a Blessed Book, but with no cost reduction). Okay, cool... however, the tradeoff is that you can only use your Universalist spell recall on spells that are scribed into this book, as opposed to some other spell book previously looted (their example, not mine).
Unfortunately, in Pathfinder you already have to cast spells from your own spell book. If you find another Wizard's spell book, you can only cast spells that you have already scribed (with a chance of failure).
On top of that, since your bonded book is your arcane bond, you have to keep it in hand to cast or chance losing the spell.
Finally, you lose Hand of the Apprentice.
In summary, great archetype for GM's that like to mess with spell caster's spell books. Bad archetype for PCs. A standard bonded object wizard is a better choice in almost all ways.
So, the tradeoff isn't really much of a tradeoff at all... it would prevent you from recalling spells from a traveling spell book perhaps.