A while back, I purchased a pro Angel novel at Half-Price Books: Not Forgotten by Nancy Holder (2000). I was poking around that section in the first place hoping for HL novels, but I was also in the mood for first-season AtS gen, and what really caught my eye was that this volume has no price anywhere on it, and no ISBN number, just a UPC code. My guess was that it was a promotional copy of some sort, or had been packaged with some non-book item.
At any rate, although, in my limited experience, pro TV novels are generally mediocre to wretched -- I'm looking at you, Element of Fire, you waste of trees' lives -- I bought and read this one.
And while it is spelled and punctuated and paragraphed correctly, putting it far above the last pro "TV tie-in" novel I read, I eventually got the feeling that it had been written before the series even premiered. The author has a fine grasp of Cordelia, but she seems barely acquainted with Angel, and she's so completely at a loss with Doyle that she seems to think he's Scottish on page 213 -- unless that's a joke I'm not getting. Additionally, the novel spends perhaps 70% of its time with its original characters, with the canonical characters off the page entirely. Surely that kind of guest-star domination is not recommended for this genre? One of the original characters is supposed to be a double for Cordelia, but casting Ms. Carpenter in two roles doesn't get you much on the printed page; I'd rather just have more of the canonical characters than an original character I'm told looks like a canonical character.
The book is not incompetent, and it has some enjoyable passages -- mostly with Cordy. But it's going straight to the hospital book cart, no stop on my shelves.