Personally, its junk.  I know it might work as many have said, but its got this 4' long hard plastic tubing (about 1/4" outside diameter") that goes down into the oil pan via the dip stick tube===which is put into a 1/4" ID x 3/8" OD rubber section about 1/2 long, that goes into a 3/8"  ID soft plastic tubing that eventually feeds into the tank.  The pump is good--this is basically like a weed or bug sprayer in reverse.  They pump out from tank and spray=== this pumps in from oil pan into tank.  The concept and parts are the same--where the issue comes up is in the poor quality construction and hose assembly.  Its full of leaks, (the hoses) and require you to get some teflon tape (not supplied) to get the connections air tight.  Then, you pump all that oil through a tiny little tube.  You WILL STILL HAVE TO GET UNDER CAR To change filter---so I am not sure how practical this is.  I think its overpriced and basically is a convenient oil storage (recycle) container.  I also think pouring /draining the oil pan is more efficient and better for engine because it actually creates a stream of oil that can flush out gunk and any debris where nothing can get through this tiny hose.  I'm just not sure this is going to HELP me but worry it would probably HURT me more---by me gettting lazy and not changing filters, or by leaving stuff in engine that would otherwise come out if I removed oil pan plug.

I am submitting photos of the hose/tubing system---

Air power--start providing teflon tape, and while the tubing system is "workable", I think it should be bigger and only use the tiny tubing if certain car models won't let larger tubing pass.

I used it one time--it works now that I teflon taped and worked out the leaks--and I MIGHT update the review after I have used it a few times and determine one way or the other if its a plus or minus using this vs draining oil pan in traditional way.

12/13/2014-
I used it on 4.6L ford.  I could not---(without force) get the tube down the last 6 or 8" of the way in engine.  Then when I did, its taken over 20 minutes to get the tank about 1" deep in oil.  So these tubes are way too small, and its way too much oil, 5Q to go through a 3/16" inside diameter tube.  It just takes way too long.

The concept is good, the execution is bad.  when I saw this tiny tubing I was suspicious but wanted to try it.  I think I will send it back unless I can get this to drain the 4.6L faster than it is.
Personally, its junk. I know it might work as many have said, but its got this 4' long hard plastic tubing (about 1/4" outside diameter") that goes down into the oil pan via the dip stick tube===which is put into a 1/4" ID x 3/8" OD rubber section about 1/2 long, that goes into a 3/8"  ID soft plastic tubing that eventually feeds into the tank. The pump is good--this is basically like a weed or bug sprayer in reverse. They pump out from tank and spray=== this pumps in from oil pan into tank. The concept and parts are the same--where the issue comes up is in the poor quality construction and hose assembly. Its full of leaks, (the hoses) and require you to get some teflon tape (not supplied) to get the connections air tight. Then, you pump all that oil through a tiny little tube. You WILL STILL HAVE TO GET UNDER CAR To change filter---so I am not sure how practical this is. I think its overpriced and basically is a convenient oil storage (recycle) container. I also think pouring /draining the oil pan is more efficient and better for engine because it actually creates a stream of oil that can flush out gunk and any debris where nothing can get through this tiny hose. I'm just not sure this is going to HELP me but worry it would probably HURT me more---by me gettting lazy and not changing filters, or by leaving stuff in engine that would otherwise come out if I removed oil pan plug. I am submitting photos of the hose/tubing system---

Air power--start providing teflon tape, and while the tubing system is "workable", I think it should be bigger and only use the tiny tubing if certain car models won't let larger tubing pass. I used it one time--it works now that I teflon taped and worked out the leaks--and I MIGHT update the review after I have used it a few times and determine one way or the other if its a plus or minus using this vs draining oil pan in traditional way. 12/13/2014-
I used it on 4. 6L ford. I could not---(without force) get the tube down the last 6 or 8" of the way in engine. Then when I did, its taken over 20 minutes to get the tank about 1" deep in oil. So these tubes are way too small, and its way too much oil, 5Q to go through a 3/16" inside diameter tube. It just takes way too long. The concept is good, the execution is bad. when I saw this tiny tubing I was suspicious but wanted to try it. I think I will send it back unless I can get this to drain the 4. 6L faster than it is.