Wow, I haven't comment in this thread yet... Here I go:
I feel like this was released a little too early. While we all are fairly/relatively happy about Beyblade's, I don't think the hype was built up enough for everybody else. I feel like if they waited a year more, it would of been good for all of us; return of beyblade+longer time for hype=happy everybody.
About the burst gimmick, I think it's ok, and has it is said above, it does end long stamina battles which I'm happy about! I do feel like they will still have a use, but seeing as they do, hence the name, burst, I feel like they would not be great choices and end up having matches where attack types that would never hit each other... But let's see, hopefully defense ones will have the (whatever controls the burst) more resistant so we can have somewhat-lasting battles. Although, as much as I like the fact the faster battles and all, I feel like it would ruin the intensity of battles that Beyblade is great for. But hey, let's see where this goes.
One thing about the B-5 to B-7 boosters is why Valkyrie isn't included in there... That is the one things I'm wondering about why they would release Valkyrie Spread Survive (what would be the booster(also, I would take a shot in the dark and say the color could possibly be green))..?
The look of the launchers (string and ripcord) both look pretty decent, but the launcher grip is probably the best looking out of them all. One thing about the launcher grip which concerns me is how the BeyLogger goes off the grip a little (not sure if it was for the ripcord or string..), and I don't see how a grip extension would work.. But let's see Takara-Tomy work their Beyspirit magic ^O^