The search functionality is good but could definitely use some tweaking. My experience has been if you do not type in exactly what you are looking for it will not allow you to find it. Especially for items that over a year old.
It's almost impossible to navigate the tool without instructor lead participation. I had to teach myself how to develop reports. The "in-app" help guides were of minimal assistance. It took many hours of trial and error for me to understand the logic behind how to develop effective reporting. This most recent upgrade added some videos which are an improvement. I believe more can be done in future upgrades.
Services Organizations can benefit from much of CP's capabilities since it is robust to handle many of the high level tasks. More recently there have been additional capabilities opened up to us which allow for our mobile resources to access Changepoint from their smartphones and tablets. This has proven to be a huge plus for productivity.