I actually love this product for one reason and one reason only. I use a lot of powder products more than I like using liquid products, so with my combination skin the dry patches can sometimes start to look powdery and cakey. This spray fixes that problem for me.
Does it make my make up last longer or stay on better? I don't think so. I haven't noticed any difference in the staying power. I don't mind the smell, honestly. I think it smells natural and fresh, although it's not so fun when I get it in my mouth. I just mist 2-3 sprays on my face when I've finished doing my make up and it settles everything onto my face so that it looks a lot more natural.
During summer I can imagine how refreshing and lovely this would make my skin feel!
Update: a) I now just take this with me when I go on public transport to my course because it refreshes my make up. b) The smell turned bad pretty fast. Ugh.
The first time I used this I thought that it did a great job but the more I used it the more my opinion changed. The smell of the mist is not very nice which has kind of put me off using it as I don't want to being spraying smelly water onto my face. I would class this more as a refresher spray than a setting spray, its nice to spray on a hot day to keep yourself feeling fresh if you don't mind the odd smell. I don't believe that it set my make up any longer than if you did not use it. I have had no problems with my spray bottle.
Tips: Spray the mist on before putting mascara