When doing iPad digitizer replacements, please remember to either use only plastic tools to remove the broken glass or you will likely need to replace the plastic bezel due to damages.
If the corners of the aluminum frame are bent at all, you will likely need to reshape them so the new glass can fit in properly.
If the plastic bezel is not an OEM part, it will likely not fit 100% true, resulting in one corner of the glass alway sticking up a bit. Locally we see this from other repair shops.
Most important is the quality of adhesive used resealing the new digitizer to the aluminum frame. If the quality of advise isn't OEM or better, the glass will begin to lift requiring you to adhere the digitizer with cement.