Apex tablet Screen repair?

It is really your choice, the tablet is selling used on eBay for 50-100$, and I think I found a screen on there for around 20$, as far as guarantees on the repair I'm not certain on what you mean if there is a guarantee if the screen replacement will work for it, it should given that you get the correct part needed for the repair, other than that like I said it is all up to you if it worth the money and the time to take it apart and put it back together but it should be fairly easy to do, in my opinion much easier than an iPad would be