Good product, works well as a base for my bumpy nails. Basically does what it promises. 

Prevents colour leaking onto my nail and helps it stay on longer in combination with the Essie Gel Top Coat

Keeps my nail colour on and prevents the colour from staining my nails

I haven’t tried all the base coats out there, but I really like this one and I’m a good quarter of a way through the bottle.  Has prevented staining, polish is lasting.  It’s working better for me than 3 in 1s from other brands. 

Dries quickly and is easy to apply but not too sure about its staying power. The nail varnish doesn’t chip when using this, but still starts to peel off after a couple of days. Having said that, it’s still significantly better than others I’ve tried