"Quite a neat little item, not too bulky looking. Can be trimmed to suit door width very easily, though you will probably have to drill an extra fixing hole or two once trimmed. Will fit to suit any flooring, these ones were to cover to carpet and seem to work pretty well. Don't really know about reliability as only just fitted, and they're for a customer of mine, so not in my own house, but have fitted one previously with no reported problems. So all in all, does the job, and at a decent price."