Others say...

"Finally a cash game book!"
This book along with the first volume are the only books that I found to give in-depth coverage aimed specifically at NLHE Cash Games. The biggest thing going for the books is that they're thorough. Around 800 pages of strategy, quizzes, examples, and some light mathematical explanations. Thankfully, not a page wasted on teaching you how to play. Even the English is quite good! (Most poker books are near unreadable.) I reread this before every game to tighten up and remind me to be aggressive and I've certainly improved. I actually ENJOY reading it, too.

The only downside might be that the examples seem sometimes inconsistent, such as recommending a raise 80% of the time in one situation and 70% in another where it seems the recommendations should be reversed, though who am I to judge? Harrington's playing style is very tight and very loose players might find too few recommendations on how to act in situations with poor hands.

Neither of the above gripes is enough to knock these books down from a 5-star review. In short, you'll enjoy reading this book and play better afterward. Definitely get the first volume, too.

"A pleasure to read"
In my opinion the turn and River are the most difficult and misplayed parts in No-Limit Poker. This is why I got this book, to improve these areas of my game.
The things I love about this book are the hand examples and analysis. After playing no-limit Texas for a couple of years I have often either gone bust or not maximised my winnings on these streets because I'd reach a situation where I didn't know what to do.
Some hand examples tell you what you should do or not do after you've made your continuation bet, or called/raised one. This may vary on who your up against and any reads you might have on a particular opponent.
Other examples compose of some difficult situations you might face where you are holding medium strength hands and your stuck between checking, betting, raising etc.
Whilest others analyse how to get the maximum when you flop a set or a big hand.
The turn and river are the most profitable or expensive streets on poker. This is why this book is great value.
There is also some extra info in this book such as beating low-limit games, bankroll and tilt management.

"MUST READ FOR DEEP STACK CASH GAMES"
DAN HARRINGTON IS A VERY SMART MAN WHO HAS DONE FOR DEEP STACK CASH GAME PLAYERS WHAT HE ALREADY DID EARLIER FOR TOURNAMENT PLAYERS. THIS BOOK IS A MUST READ FOR WINNERS.

"One of the Best poker books about Cash Games"
Whit this book, I improved my skills on cash games, and learnt how to avoid mistakes. Recommended reading for beginners.

"Good for on-line play"
This volume completes the series. I play only on-line. The whole section on tells is about betting patterns. On-line thats all you have to go on. So this works great for me. Combine that with the board reading skills I picked up in the first volume and my NL cash game has improved a whole lot. I think anyone that has some basic skills in poker and is a break even or loosing player will improve to a winning player after a couple of reads.