PU blanks have the feeling and drive well known for over 50 years. Its cells are water resistant, it sucks water but slowly as the water breaks into each cell until the cell wall breaks and water moves into the next cell. The foam dries relatively fast and fixing the ding should not take too long and it should be noted that PU is one of the heavier board tech's available. However, PU is reliable and it is what most of the pros use.
PU blanks are the most affordable blanks available. So if you're looking for the most affordable yet quality solution, PU is the way to go.
There's a reason PU blanks have been around for over half a century. They're reliable and used by many of the world's best surfers.
Another great feature of PU blanks is that they're easy to repair. If you get a ding the foam dries relatively fast and fixing the ding should not take too long.
PU is a foam technology that is well proven and tested over decades. It has a price point that is affordable, it's easy to use, easy to fix and is the fastest technology.