A very good looking book, but not quite in the same feeling as the third edition setting.
It's very much 'lighter', and the Redeemed races - once favorite enemies are now options for player characters. That's an odd choice, and I'm not terribly fond of it. I get it, more options, but not to my taste.
Rules-wise it seems pretty solid, a ton of information for domains, classes, equipment, spells and rituals. This is the real meat of the book and easily worth the price. Layout and design is all top notch, a ton of fantastic art, it's just a bit of a brighter more hopeful feel than the original and gritty setting. It seems like a lot of effort was made to have this appear like the D&D 5e Player's Handbook and not a unique product by itself.
Some parts are flat out wrong with the setting, the Drendali are not pale skinned elves, but the more traditional jet black-Drow elves. Not sure why the change was made.
I am happy to see Scarred Lands in 5th ed. This is a fantastic supplement for rules, but a lot of the theme and flavor just don't quite hit the mark.
The third edition books are still relevant and are great companion pieces to the rules in this book. Make sure to pick up the Ghelspad Gazetteer or Campaign setting. Find them in print if you can, the big maps are fantastic.
I'm curious to see what Onyx Path will do going forward.
[4 of 5 Stars!]