It is especially nice that the package all the required tool is included. But the special screwdriver for the opening of the two screws at the bottom of the iPhone is a bit unstable. But you can easily loosen the screws and reattaching it to the end. Then he is no longer usable.
If you strictly follow instructions (here there are some good tutorials on video platforms) is the training and installation of the parts also nothing wrong.
In particular, this product can be said that the price-performance ratio definitely deserves 5 stars !!