I used to use this consistently a few years ago as it's affordable and does a pretty good job. Nowdays I only purchase this when I've run out of my Napoleon foundation and can't make a trip to Auckland to get any more.
Revlon colourstay has a good coverage, esp if you suffer from red veiny cheeks as I do and is very easy to apply, with either fingers, a sponge or a brush. They have a good colour range too.
The main reason I stopped using daily was I found it was rubbing off during the day around my chin and tip of my nose and I just don't have the time for touch ups during the day.
It's a good all rounder foundation, esp for those just starting out. I like that it has a fairly matte finish, as I'm not into the dewy look at all.
I am forever trying out new foundations, but always come back to this one, simply because it stays on all day, and doesn't oxidise. I have been disappointed over and over again with lower-end foundations such as this one, but this one really stands out from the crowd!
It is creamy, has a nice scent and starts off at a medium coverage. I tend to add a bit more to my freckly areas to cover them up. It is easy enought to build up the coverage of this foundation without having it look cakey.
The old bottles have no pump and are terribly messy, but the newer ones have pumps which makes it a lot easier to apply.
There are tons of shades in this range, so it's easy to get matched to your skin tone. Mine was matched so well it blends invisibly into my neck.
Tips: Make sure you get the correct colour for your skin tone, and I have found the best way to apply is with a wet beauty blender or similar (I am currently using a Real Techniques Miracle Complexion Sponge)