Environment affects gene expression so cloning below the cellular level (genetic cloning) results in an individual that does not have the same developmental changes caused by environmental factors that the original had. With current technology genetic cloning has been done and cellular cloning is not possible.
Dear tech developers, if you are listening please put VR projects on the back burner. They are an interesting future technology but the currently possible technology that people would adopt if it were economical to do so is AR. A simple heads up display with an integrated personal assistant has enormous potential in both personal and business uses right now if it was reasonably priced and reliable. You could replace cell phones.