It's very strong out of nowhere or when expected, it wins
However, it does give players a good chance to experiment with styles of decks and commanders that they may not have used before
The deck additionally features several other card draw spells, and creatures that can draw you more cards (such as Arcanis) or scry, allowing you to stock your hand with the spells you need
In Commander with a creature as your leader that's a guaranteed +1/+1 which could be a faster Commander Kill by a turn so it's a Time Walk in mana dork form
By the way, if your opponent controls a Sundial of the Infinite and you have an artifact removal in your sleeve, such as Krosan Grip, you cant remove Sundial of the Infinite before your opponent activates its ability, as long as your opponent is cunning and smart
Even outside of that use-case, Springheart Nantuko is a fantastic creature that can generate absurd amounts of value regardless of what you may or may not bestow it upon