Any of the solid surface ****er tops can be repaired and if done properly the repair will be invisible. The cause of the break,crack,etc,needs to be addressed so that it does not happen again.
The corners of sink and range cutouts need to be radiused. A square cut is a guaranteed crack. Those radiused corners need too be doubled up with a small piece of solid surface scrap glued underneath at each corner before doing the cutout.Then as the cutout is done the reinforcing blocks are radiused too.
An extra step is taken with the range cutout corners by applying a foil insulating tape to keep heat away from the solid surface material in the area of the corners. Find the right installer/fabricator and you will discover your counter tops are very repairable.