I got my hands on the full version of Splatoon 2, and I'm happy to say that so far, it's on track to be at least as good as the original. You can watch the first 15 minutes for yourself below.
Yet, as you may have noticed, a lot of this build is locked right now. Since online play isn't enabled in my current version (it will be later this week) you can't really interact with the shops, and thus unlock several key features, just like the first. At the moment I can basically mess around in the hub (which includes a DDR-like minigame), scan amiibo for costume bonuses, and play the campaign.