Did you sign an invite code using the key in their bio? That's so neat! I'm not sure if you have more, but I'm also on the waitlist (bluesky@owen.sh) and would love to check it out.
I will say to be on topic that I am enjoying Mastodon, but the network effect isn't there yet. It's a pretty small minority of users from my feed that have either switched or are dabbling in both, so tech stack aside, I feel if Bluesky gets momentum it has the best chance of being a drop-in replacement for Twitter in the near-to-medium term, given the relative simplicity (this isn't a knock against Mastodon, more an acknowledgement of simplicity's factor in mass appeal).