I've just finished reading it myself so here's my two pennys worth.
It was quite confusing at first as there is an Uncle and also a Captain but no Colonel. The Uncle isn't the Colonel from the TV series but the Captain is
No way is this a book for little children as there are graphic details of cruelty to horses all the way through the book.
I wonder why the actual story surrounding the pony Cobbler's Dream was never in the TV series?
Steve is referred to as Paul but I never had any difficulties relating to him as the TV character Steve, because apart from the description of his looks, his character is nearly the same.
I'd say Ron Stryker is exactly like his TV character and so is Slugger. Dora was described as looking like a boy so definately not like TV Dora
I wonder what the TV series would have been like if they'd included Slugger's wrestling wife called Tiny and the Colonel had married Callie's mother?
A fantastic book. It gets ten out of ten from me 8-)