I had a little difficulty deciding me before buying as there were messages about the difficulty of assembly. Rest assured, it's super simple. There is a link to a video that shows and explains how. It is really not difficult. Do not get the wrong position of the parts (it's quite difficult to deceive if it follows the video) but it can be removed without breaking anything and go back as soon as possible.
Maybe a half star less because I think that sinks have a single double-sided tape to paste and no thermal paste. That said, my Pi + B 24/24 turns without too much heat or planting.