The new album's pretty solid. It's heavy, Arch sounds great. Good songwriting. Jarzombek really shines on this material too. He's a damn fine "substitute" for Mark Zonder.
My biggest gripe is the same gripe I've always had with Dream Theater: it's too long. None of the songs that are 12+ minutes long need to be. Stained Glass Sky is really 2 songs in one. The first 3 minutes have nothing to do with the rest of the song, and there are other parts in songs that drone on needlessly.
That aside, If you liked the EP he did a decade ago, you'll love this, because it's even better.