I'm not sure what it means . It short and I like the number 8 . I'm only very new to domain investing but before you snap up a name of 4 characters or more, have a think about the type of domain it is. Maybe UDS stands for something and therefore it could be useful. Personally I don't think it has much value.
I hope that helps. I know it's frustrating not to receive constructive feedback.
Good Luck Dave