Some other points:
Lily & orbit have 125 HP (Will be 135 next patch)
Lily & Orbit can have a lot of trouble pressuring a blocking opponent because their moves all have 1 of the following attributes: Low shield damage, a lot of endlag on block or low range. Whenever their super attack is activated, they can essentially trap the opponent into blocking because the stars will hit them if they don't block. This is why an unblockable attack such as dash attack can also be really useful. I agree it has almost no niches though.
The hitbox part of the fading fist destroys projectiles.
If you release Orbit's charge right as you're about to jump, you can do a jumping attack at the opponent that is completely safe against anti-air attacks. If they attack, Orbit will hit them, then your air attack will hit them, so you get a combo. If they block, nothing bad will happen to you either, of course.
wow, this list was very complete