Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: Poor design
Review: Owned this product for two years. Have regretted buying it every time I have to change the filter. It is supposed to go under the sink where access is already restricted, so one would think filter replacement should have been thought through by whoever engineered it and made an easy process. Not so. Plastic screw-in filter holder requires using additional hex driver (included), a pair of pliers, good arm muscles, and a stream of expletives helping it along. You have to use BOTH hands and still it is extremely difficult. I always have to put some grease on the threads, or the next time it would never come off. One day I'd find something better and gladly throw it out.
