Beautiful book; only has a minor flaw (present in the print version as well) from the persons editing in the Dragon #103 errata not actually reading that magazine, but just going by the 2-page errata sheet. One substantial (to the player character's benefit), official, change was made to the Thief-Acrobat that was only mentioned in the article that accompanied the errata pull-out due to space constraints (see my comment in the Discussions section).
However, the other errata are almost seemless in their insertion (sometimes, there's just a slight change to the fonts you might pick up on as being different from the original, but it takes a discerning (if not obsessively over-critical) eye to catch them). One piece of art (page 72; was originally a full-page drawing of 2 adventurers in mountaineering gear fighting a demon as filler for a page that would have otherwise been blank) was sacrificed from between the Player & DM sections in order to include the new potential race/class combination table, Thief skill modifications for armor table, and Thief-Acrobat skill modifications for armor table, that were original to the errata sheet.
This version is also much better in quality than the older PDFs I've seen of the original printings. Whoever scanned this version (or used software to print it to PDF - not sure which was done) did an excellent job with the conversion.
I own both the physical version and PDF of this reprint. If you intend to print the PDF to self-bind (as opposed to printing out the occasional page for discardable reference), save yourself the trouble and pick up the physical copy too if you can find it cheap - the hardback is so nice, you'll still probably want to use the PDF more often to keep from wearing out that beautiful book. The physical book is half the thickness of the original with the same page count from the higher-quality paper & printing, with none of the binding issues of the original (and it has the built-in bookmark of the first 3 reprints). In fact, I doubt you could print the PDF out double-sided and have it come out that thin (even with the covers being normal paper - and a printer can't replicate the metallic sheen on the centerpiece and gold highlights of the cover).