This was bought for an above ground pool. Before this I'd been using another type of pool vacuum with a small motor and it could only suck up a small amount of debris before needing to be emptied. I finally had enough and went searching for a new one and came across this! I saw other pool vacuums for $100-$300 and was at first skeptical since this was so cheap. Trust me everyone - THIS VACUUM ROCKS!It's so easy to set up, and all you need to do is connect your garden hose to it and turn on the water to the hose, that's it! It's got brushes on the bottom that do a good job and the suction this thing has is amazing. It easily sucks up leaves, debris, dirt, bugs, etc and the bag holds a LOT of debris before needing to be changed.With my old vacuum it'd take me sometimes 30-45 minutes if my pool was very dirty. I've used this vacuum twice now and I did my entire pool in about 7 minutes. It's fantastic.I saw a couple other reviews saying debris still escapes the bag but I did not find this to be true for me. The bag has tiny holes but I didn't find anything escaped. It worked wonderfully. I highly recommend this vacuum!