Not to be a smarty pants, the real question is are you happy with your bike, which it seems you are.
For $269, it will be easy to recover your investment in casual rides. It may not hold up to the annual miles many of us ride, nor be comforting at some of the insane top speeds reached by some. Knowing the bikes limits will ensure your satisfaction.
You got into tandem bikes, which is what this place is about. I'm glad to see others enjoy what we found out not long ago.
There have been a bunch of recent topics about economy tandems. Hopefully your bike fulfills all your desires and lasts for you.
For many teams these are perfect bikes for them, or with minor upgrades just right. Please be careful, smart, and safe as you are now responsible for two riders.
PK