I was having high hopes for this class, yet even with the 33% recharge time reduction on tomes, the recharge times make the tomes useless..
To make the tomes more usefull, an easy way would be to make recharge time based on the numbers of tomes spend.. so if you use 3 tomes of atotal of 8, the recharge time of that tome would be 3/8 * 20 secs = 7.5 secconds ( tome of justice with recharge time reduction).
Its sad that with the current recharge time mechanic you are like forced to spen all chapters or you would end sub optimal, this mechanic would make switching between tomes much more fun, and add more depth to the decisions made, while not overpowering the Virtues.