This flooring is inexpensive, quite durable and provides some cushioning. However, the old product does not survive flooding and can be nicked with sharp objects. There is a newer version that has an all vinyl base that will not be damaged by water. It is three times the cost.
Here is how you repair nicks:
To repair larger portions of damaged floor it must be removed piece by piece from the finished end or cut out then glued in as described HERE.