Battery: It works for almost 40 minutes after fully charged. But, once it is discharged, you can not use it until it is charged for almost 3-4 hours.
Ease of cleaning: After use, you can clean it easily. The blade part can be washed with the water, and the rest of the trimmer part can be cleaned with the brush provided in the package.
Working: Ease to use. There are 10 threads to trim the beards in different sizes.
Pricing: Slightly overpriced.