Customers most agreed on the following attributes:
The Mui-Quest ProMax Mini SoftBox is a great aid to help soften the harsh lighting of most flash units. This addition to a lower end flash adds a softer light to any subject when you try to capture the moment forever. Great for candids, weddings, or any family gathering, this soft-box will help you get the perfect picture every time!
I used this with my Canon Speedlight 430EX... It allows the flash to create even lighting and works great on indoor photography and portrait photography. I would def. recommend this diffuser..
This has been quite find for my SB-800. I also bought a third party version of the small plastic diffuser similar to the Nikon version, cut enough of the the front off with a mat knife to hold the Velcro, slide that on and attach the soft box. I preferred that to attaching it directly to the flash unit. It works great, a nice soft light. Soft enough to shoot a 90 degree angle shot with no red eye (again nice!). If you don't like the Velcro, you could remove it completely and use a wide, tight rubber band to hold it on (even more economical).
I was very impressed with the performance of this product. I take it on every shoot with me. When I use it for fill I can't even tell the picture was artificially lit. I would recomend this to any portrait or wedding photographer. I am planning on buying even more lumiquest products to add to my system.
This little softbox is outstanding. It's inexpensive, performs better than expected, folds up to a small storable size. I can't imagine shooting weddings without this product. I use the Nikon SB-800 and attach the supplied diffuser and the softbox over the top of the diffuser. It generates a wonderful soft light, especially when bounced off walls and ceilings, even over my shoulder. The kicker is, it folds up and fits right in my camera bag taking up very little room. Yes you need to put 4 strips of adhesive velcro around your flash, but why is that an issue when you get such nice soft velvety light? The velcro is a minor issue if the lighting is that much better. This little softbox is a must buy [...]
This is a very heavy diffuser for it's small size. You will have to leave velcro on your camera at all times to use this product. The weight of this diffuser is enough to where your flash will lose it's position and depending on the angle - may lose balance when used at a 90 degree angle.
As for the diffusing properties - it works great. :)