I know I am already BU for using AIBU to canvass answers quickly but I'm hoping you'll overlook that 
I have had cause to Google around for other people's experiences and dealings with Cafcass and outside of the official Cafcass and court information, the tales I have found are overwhelmingly negative. Terrifyingly so in some cases.
I know that no one leaves good reviews when they get the service they expect so am hoping that there are plenty of good, positive stories to balance out the negative complaints, and that you won't mind sharing yours with me to reassure me that it isn't all doom and gloom and stacked in one side's favour.