I've just used this product for the first time and will update in a few days to see how it holds up.  But the fact that I'm typing less than 5 minutes later with no smudging or stickiness says a lot!  The brush is nice and wide and as the ad says contours to your nails really well. It doesn't look as 'rich' or deep in color/shine as a full manicure, but looks nice. I'll certainly do my nails a LOT more often with this product. Took less than 5 minutes vs. having to devote an hour to waiting for a complete manicure to dry fully.

Updated 6/11 to add: I liked how easy this polish was to apply and loved how quickly it dried.  Unfortunately within a day or so it started fading/chipping, and by day 3 I had to remove it.  To be fair it was one layer of polish applied very quickly and it did what I wanted - dried quickly - but it didn't last very long. It was quick and easy to remove, though. I may try two coats next time. I'll still choose it over the polishes that take forever to dry unless I have a lot of time to sit and wait. It's nice to know I can apply a touch up or even re-do one (or all!) nails in such a short time.