As a user of powder foundation, I always make sure to never leave home without setting my makeup with a spray as I absolutely detest the powdery look. Anyway, I bought the matte one over the dewy one as my Tzone can get oily very easily and I don't have time to constantly touch up.
When I get home after a long day of work/uni my makeup is still intact and not sliding off my face which is great as it has definitely set and increased the longevity of my makeup. In terms of keeping my face matte all day, it does the job however my Tzone does get a little shiny after midday but not to the point that I should touch up.
Overall, this spray is good in terms of its price point - it isn't very expensive for the amount of product you get ($16 for 60ml). It increases the longevity of makeup (about 8 hours) and mattifies for the majority of the day.
I found this product while on holiday in Australia I think I paid 14 for it. (Dewy finish) I now use it every time I do my makeup mainly for the reason that I use a mineral foundation but I'm not a fan of the matte look. It adds back some moisture and helps set everything in place leaving a nice dewy look
I recommend for an everyday makeup setter its great for the price
Tips: I wait until I've done my eye makeup so I can set everything at the same time