Personally I'm thrilled. Especially with the inclusion of Frankie and Reece.
I'm not a tourney player AT ALL. No interest whatsoever, but I've followed Signals from the Frontline with Frankie and Reece for hundreds of episodes I've read so many of their articles and those guys want balance above all else. They've gone on and on, how balance is better for business, better for the game, better for the general mood and attitude of the community for ages.
If you watched the latest episode, Reece is absolutley losing his mind with joy over the death of the Deathstar. Dude has ranted, on and on and on about how much he hates Deathstars and really how much he hates powergaming in general ever since I've started listening to their podcast and following their work.
Their philosophy aside, the data that they've coalated by running the ITC, tracking the performance of the various faction, the process of the managing the ITC FAQ with an eye towards game balance, and their experience in terms of just being players, means these guys were better prepared than almost anyone I can imagine in terms of experience for playtesting the new edition.
I think to really judge, you gotta go back and listen to what these guys have said over the years. Read their articles, listen to some of the backlog of podcasts (though the most recent one is a perfect introduction to where these guys stand in terms of attitude towards the game). Like I said I'm not a tourney player and have no intention of ever going down that road, but I don't think you could ask for a better group of play testers to work hand in hand with the GW staff.
Here's the latest episode of their podcast to get a feel for things. You only gotta listen/watch for the first 10 minutes to get the vibe of where these guys are coming from. Give it a watch
Signals from the Frontline #531: NewHammer Coming in to Focus - YouTube