I gave it 5 stars because it flies great for me at 4500 elevation. I have been on a search for a disc that will hyzer flip with my arm speed at 4500 elevation. I have low/medium arm speed (50mph) and can throw this 325'.  The roll is easy to control and the fade reliable. I can't turn a Mamba or Heat at 170g. A 150g Archangel is hard to control and my 158g Diamond turns and flips more than the Swift with less fade to fight back. I highly recommend the Swift in 130g weights for lower arm speed distance driving at higher elevation. It can be pushed much harder than you may think with its weight and turn. If your arm speed is even lower get a Pterodactylus. BTW, I've been playing since 1993 but I have found that kids weight discs fly better in thin air.

Aquaflight is fantastic. I have their putter disc as well. I have landed this in water and it does indeed float even when pushed down into the water. However I would be aware that if it comes down at an angle into the water with a lot of force, it will go down straight into the water and possibly in mud and get stuck. But normal landing in the water you will be just fine. Would highly recommend to anyone wanting to branch out into some courses that have water.

Bought this for my 7 year old (now 8.) After about 100 throws, he gets a nice distance line with a consistent finish (he has ~160 ' of power.) Most of our local courses have water hazards, and he throws with confidence knowing that dad can fish it out with a Retriever if he comes up short.

The Swift is an neutral fairway from Aqua Flight. If you are new to Aqua Flight you should know that they are geared to beginner players, or players looking for lighterweight discs. The Swift is fairly neutral for a beginner and is going to fly pretty straight. It serves its purpose for newer players, or smaller kids. Anyone with average power is going to be turning this thing right out of the hand. 

Got this disc for my 14-year old daughter. It instantly added a bunch of distance to her drives (probably due to the lighter weight) for her it flies straight with good solid fade. She is driving out to about 150-175'. For me, I'm able to drive a nice narrow S-curve 225' with very little effort. I think this is great for beginners or people that want to slow down their throw and work on form.

It flies fairly well for a beginner, which I am. This is the only reason I gave it two stars. I got this because the courses I play at have a lot of water hazards. I thought this disc would be excellent and not worry about it going into the water since it floats. It says it even on the disc. Boy, was that misleading. Three shots into the course and I throw it towards the water. Unfortunately, the disc never came back up. The hazard was not even deep and there was a slight current that I was hoping it would push it up. Long story short, this disc did not perform as advertised.