I've tried OPI last week, I bought a few clearance items from a drugstore. I like that it's already pigmented with just one layer. My nails didn't turn yellow after I removed it, unlike the other brands.
I think the only downside is, it's not that durable unlike the gel type of nail varnish.
These are great nail polishes. I got given one of mine as a gift and I love it! However I just don't like the price.
The bottles are big and the colour range is great however I just can't justify the price. Over $20 for a nail polish is quite ridiculous for me, especially if I won't wear it often or at all.
These have a nice brush and they apply opaque in two coats. Mine dried pretty fast too, which is always really useful to me. It lasted all week with a few small chips, which was impressive.
I got given a gold-bronze colour for my birthday and despite it being such a gorgeous colour and great formula I just can't bring myself to repurchase for the price.