I liked the Fit Me foundation so I thought I'd give this one a go too. However, I didn't think it worked well on my oily skin.
I've tried better powder than this and the slight shimmer put me off a bit. It didn't help my oily face and it also didn't set my foundation well enough.
I think it you have dry-normal skin this would work better but not for oily skin. I do like its packaging though because it's compact, comes with a mirror and space underneath for a sponge but I didn't use the sponge it came in anyway.
I have had this product for years now. I have it in the shade 120 (although my winter foundation shade is probably 110) and I have no problems using this to set my foundation and take away a bit of shine if a foundation is too dewy. I don't tend to have oil breakthrough throughout the day so I cant really comment on its efficacy in that regard. I don't find that this makes my foundation look cakey which I like. I did use my beauty blender with this after seeing Crystal Conte use hers with powder products and it did ruin the top of the powder and make it all hard and crusty- this is not a powder which you can use a beauty blender with obviously.
Tips: Use a big fluffy powder blush and swirl around the face focusing on any areas which you experience shine or where you are concealing.