It is very good if you know why you are getting it. Don't expect to light up a shot with this. For fill light, it is just fine.

Perfect! I have bought 3 and I want to buy more. They combine well with each other and help for continuous lighting for video or even for photos (although for photos you might need stronger lighting or flash). The battery lasts quite a while. There is charging via USB-C. They can charge while you use them if you connect them with the cable.

With a little more intensity it would be perfect. I have it for a month and I don't have an opinion on its durability yet, judging from other products of the company I imagine it will be very durable.

It cannot provide the same light as the flash in any case. If there is light from behind or if you are taking photos outside at a distance of more than 3-4 meters, the light is not sufficient. However, it is very good for indoor photography, as it easily creates studio conditions with its colors. It is ideal when we want low lighting and color. It can also be placed wherever we want to provide light from the side or from another angle. It is worth having as a tool. Therefore, if purchased for a regular flash, it is rated 2/5, for everything else 4/5.