Some notes on the device,
I have shaved my whole body with this 5 times and to my surprise, it serves a job perfectly and better to my previous bodygroomers. The battery life is impressive as it holds a charge for 60 minutes and only takes 30 minutes to recharge. The engine is top notch. I can use it under shower without any limitation and it works smoothly and it doesn't nick my skin. solid build! The back attachment is very efficient and helps me to reach my back and difficult parts. I always had this problem to shave hair on groin and curvy parts of my body completely off, this problem almost have been sold. Totally I can say that I'm impressed with the quality and closeness and comfort of the shave.
PS: There are not a lot of good options outside of Philips(specifically bodygroomers), Although some reputable brands like Braun, Panasonic and Manscaped are on the market with hyped advertising around their products but I can say it with certainly(based on my experience) none provide a close shave to the skin and even after shaving your body still snagging hairs and giving deep cuts off and nick the skin. Few of them only work well on flat surfaces with short hairs, but with long and curly hairs they will give you a poor result.
If you want a close shave with 100% result go for razors like Gillette. Of course you will face with nicking the skin and pretty deep cuts plus some side effects such as body acne, blemishes and skin sensitivity.