Do you think the Python gravel cleaner is worth it? ?

I have my python and like a previous poster I would swear by it. I use it on both my fresh and salt water tanks. (Different size syphoning tubes but the same hose) Like you I don't want to leave my tap running to "suction" the water, so I use it to water the plants and gr outside my home by running the hose right out the front door and draining the tank out that way. To refill the tanks however this is a godsend. Saves me running buckets around the house, and spilling water everywhere. Or even having to fill them 1 cup at a time :( (If you have a sw tank remember to mix your salt outside the tank! I mix mine in a bucket beside the tank)