That would be a smallish frame and top tube height of 30" should equate to an inseam for you of 31" + a bit.. Standover height is nothing really so how tall are you?--And inseam. As the other thing mentioned is that this is in the region of a 20" frame- there may be a problem. That is not small.

This bike is not new. May be kept in good condition- but it is a bit old and even in its day it was basic. But if it fits and rides well and you can get it for less than $100 (A lot less if you haggle) then it would be worth getting. Then when you do get a better bike- you can re-sell it.