Don’t take a dry basement for granted. A flooded basement can be a nuisance or an expensive mess. A reliable sump pump installation should have these features:
The power for the pump should be a dedicated circuit so it doesn’t get overloaded when you need it.
The pump should be in good operating condition. Have you tested it and seen it work lately?
The float switch operation should be clear of obstructions. If the switch can not turn on, the pump won’t work.
The piping should be unobstructed so the water can flow freely.
An alarm if the water level reaches a certain point to alert you to the problem.
(A minimum cautionary step is a battery operated water alarm to alert you if the floor by the pump, water heater or furnace (a/c condensate) is wet. You can buy a sensor at your local home improvement store