I'd like to be more ticked off with Johns, here...the dialog is really awkward and stilted here compared to his work elsewhere and the plot really seems to drag at times.
But on the other hand it feels like this (as well as Legion of Three Worlds) is singularly designed to answer fan requests for stuff...and I'm OK with that. Max Mercury appears to no longer be dead, for example. Wally doesn't appear to be getting shunted out, but is instead 'Family Flash'. The Reverse-Flash monologue about Barry being made into a martyr was pretty good. Jay and Bart taking down Zoom was also a nice touch.
The only party I didn't like was the whole 'it all started with you' stuff, which felt really pigeon-holed...especially with the idea that it goes backwards through the timeline, so Jay and Max are actually results of Barry's power. Whuh? Ah well, that'll prolly be forgotten soon enough.