This set is perfect for those of you who already have an on camera flash that you want to use for more advanced lighting. Another good inducement is if you want qualified lighting with as mobile equipment as possible.
It makes a great difference to set the flash on a stand and combine with other sources of light. You can get fine results by placing the flash so that it lightens shadows just right. This set also have the befit that it is easy to carry, compared to studio strobes.
Another advantage is that you can use the TTL auto settings.
You may like to combine this article with a remote trigger and/or an extra flash.
Assuming you already have an on camera flash you can get awesome results with two sets like this, one extra flash and a remote trigger.