You have the rare capacity to use both of your hands for magic with equal efficiency. You can use any of these features a number of times equal to your proficiency bonus + your dex. modifier per long rest.
If you have the mage hand cantrip, you may have up to two instances of the spell cast at a time. You can control both of them within your action, making them do different things. The mage hands can collaborate to lift up to 20 pounds if they are both lifting. the same object
If you have the produce flame cantrip, you may create two flames, each appearing in one of your palms. The amount of bright and dim light shed by the spell doubles. You can hurl both of them in the same action.
If you have the shocking grasp cantrip, you may cast it twice against the same creature in the same turn.
AMBIDEXTROUS CANTRIPS
You have the rare capacity to use both of your hands for magic with equal efficiency. You can use any of these features a number of times equal to your proficiency bonus + your dex. modifier per long rest.
Best Spells: https://www.dndbeyond.com/spells/2190706-applause, https://www.dndbeyond.com/spells/2047204-big-ol-switcheroo, https://www.dndbeyond.com/spells/2188701-cerwicks-copper-cables
Best Feats: https://www.dndbeyond.com/feats/1512461-soapbox-revised
Best Monsters: https://www.dndbeyond.com/monsters/3775489-jar-jar-binks, https://www.dndbeyond.com/monsters/3860024-spare-ribs
I think it should be good! Kind of niche, but powerful when you can use it. Overall, I'd say it's a nice feat!