The effect of transitioning from 3-star balls to 2-star balls is the same when further downgrading to 1-star balls. This enormous package of 144 table tennis balls comes off so cheap that you couldn’t believe it. However, these are only fit for clumsy table tennis without much trust in the hardness, durability, and consistency.
For recreational table tennis, these balls will also do well, so they aren’t unplayable by any means. Just not a match for 3-star or even 2-star balls. These balls will do great for training, table tennis robot use, serving, and beer pong, among other things. I highly recommend this huge 144 ping pong ball pack if you are looking for 1-star balls!