I have a bad ankle and can no longer use the ladder so I bought these steps. The kids and I love them--They make pool access so easy we use the pool much more often. I haven't had any problems in the three months we've had the steps. We've had no algae or liner problems. We do have them on the pad and weighted with sandbags and bolted according to the instructions. My biggest concern is removing them for the winter as manufacturer recommends. It appears someone will have to be in the water to lift them up so they should be removed before the water gets too cold.