Convenient Tool
This is a great and convenient tool. No more spilling of liquids like gas, oil and the like. Makes changing my own oil a breeze. No crawling under the vehicle, no messy spots on the garage floor, no bolts to take out and put back in. It just works like a charm. I like it!

Good design -- Very poorly made
Pumped well while it lasted. However I would not recommend it due to its fragile construction -- the On/Off switch broke the first day (had to use screwdriver to activate), then the impeller & housing came apart after only about 3 weeks -- It is now totally useless!

limited service pump
This pump is not well made and has limited useds, altho it would be hard to say what the uses are.

Useful and handy
This item works as described and is exactly what I need. The new gas tanks purchased from CA are, as you likely know, horrible on the environment, your back, and the gas bill. This item lets me pump the gas without spilling fuel all over. It pumps about 5 gallons in five-ten minutes. Not speedy, but it is reasonable and gives me time to tend to other matters. (I pump two 5 gal tanks onto my boat right at my dock.)
The hose included is cheap material, so be prepared to buy a higher quality and longer hose. (3/4 inside dia. with a hose clamp. 5' is what I have.) Also - unless this pump is exactly upright it will leak a little through the vent hole, not a big deal, just set it well and you're good.
It is simple construction so I expect it will last quite a while. The parts are lightweight and seem a little cheap, otherwise it'd get 5 stars.

Great little pump.
I used this pump for my daughter's water wheel science project and it works great. It runs on two D batteries and is portable without an electric hazard a plug in pump may have.