The Python is extremely useful. I myself stuck to the "ol' bucket" because of sentimental reasons - remembering my first steps as an aquarist and such. But from the first time it took me 7 min. to do water changes in two 55 gal tanks. I was hooked to the Python.
Now the Python water pump does have some quirks:
- It may spray water all around your sink if you don't tighten the connections well enough.
- Gets clogged easily- when sucking old leaves, accidental Java Moss or gravel.
- If the hose is more than 50 feet you need a very strong blast of water to have good suction at the tank.