Choo-Choo Choose You is quite stunning one of the most unique shade I have in my collection. I'd say if there is only one polish from the collection you should get it's this one. It's a greyish blurple with greenish gold shimmers. The polish is a little sheer but can be build up to full coverage in 3 coats. The formula was very easy to work with. I love the depth it has and the shimmers look so glowy against the dark base. It's definitely a lot prettier in person than in pictures.
Mind The Gap is a medium dirty olive with green and gold shimmers. This one is quite sheer and thin and will need 3 coats to be full coverage. However, the formula is very easy to work with as well. I like it but I wished it had more depth like Choo-Choo Choose you.
So that's it, these are the only two that I felt I had to get from this collection, even though I think all of them looked nice. I love how fall-ish they look and I think I favor the fall collections a little more since I like darker colors. I purchased mines from Sally Beauty Supply.