I purchased this for wide angle real estate tours, and picture quality is great for this price point The extra 360 lens is a nice perk, so I also plan to use this winter for snowboarding. It was annoying that my first video was tagged with the large Insta360 watermark, since it didn't look great for my marketing. But I did some research and this can be turned off in the settings menu. I didn't have much trouble with the app, but it's not the most intuitive set up for connecting, saving and exporting videos. I got through it with trial and error on a few practice videos. I'm not sure I'd recommend for anyone who isn't computer/phone savvy. I did take off one star because preview screen only works for "standard video" mode, and only shows a black screen for all other modes. You can't see what you shot until after the video is complete. This means I can't use any high resolution modes for home walk throughs. I hope they fix this.

Works amazing and high quality for a very reasonable price

On my Canon T3i Kit 55-250 lens, this polarizer works well. Make for awesome sky pictures with deep, rich colors. If you are looking for a cheaper polarizer, this is a good one to get.I took off a star because of how it works in screwing it on and off. If you don't pay attention, you can keep twisting the top piece of the polarizer and never actually screw it on or off. It's a two piece assembly that can twist on top but not turn the threads. It's not really a flaw, but is frustrating until you figure out how it's on there, and with big fingers it can be hard to get just right.I'd still buy it again though, I don't really ever take it off my telephoto lens.