Very thrilled when I got it. Tables and charts were abundant and informative. But some of the component figures were very crude and unclear. For me the shock came when I noticed there was absolutely no information, data or chart anywhere on one very important refrigerant R410 especially being a book published in 2006 and also since R410 is going to be the 'environmentally friendly' refrigerant which will replace R22 (now used in residential AC 10 SEER applications) which is being phased out by 2010. The absence of this vital information was not mentioned or reviewed anywhere when I purchased the book since one cannot physically peruse through the real book while ordering online.. Very disappointed from that perspective. Otherwise a useful addition to your collection if not wanting R410 information.
I hope this feedback would help someone in that respect before buying.