Saved my 2 that I've earned for this week, and opened Echo (cool I guess because it's new, but it's not really useful, per se) and then a dupe Nebula which gave me chibi Zero 🤮
A week also feels like not nearly enough to have them available for, I wish they were 2 weeks each, or were just 3 stated options instead of "oh ho ho, we're hiding the last one!"
I burned through pretty much all my upgrades to get 3 of the 4 caches and managed to get Jean on the 3rd. It feels super carrot-on-a-stick, but at the same time it's not the only way to get her as you can use collectors tokens. Of course, I don't have anywhere near enough of those so these caches seemed like the only remotely possible way I'd land her anywhere in the near future.