I just changed the water on one of my tanks & it literally took longer to go downstairs & get the hose and hook it up than it did to remove and replace the water!
Bomba, one of my tanks is around the corner from the bathroom sink, some others are in the living room & I hook my Python up to the kitchen sink. Basically I can't see the water source from the tank. But it's not a problem the controls are such that you can leave the sink to care for the tank without getting water everywhere. Plus, they sell an extension so you can reach tanks that are further away.
Basically if I didn't have my Python I would never be able to have several 5 gallon tanks & be hoping to set up a 29 gallon.