The Brushes Could Be Better: Nailboo's brushes are squared, which mans it's a bit tough to get clean lines along the edges of your cuticles. This might not bother some people, but perfectionists will miss a curved brush.
The Top Coat Is A Little Lackluster: I ended up applying two layers of top coat, which, in turn, made the drying time much longer. Don't make this mistake! One coat is enough, it's just not going to be diamond-like.
Removal is a B*tch: Who here is also still waiting for a lasting manicure that doesn't require a pickaxe for removal? I filed then soaked my nails, as per instructions, but was left with a strange film over the skin surrounding my nails. It wasn't the worst manicure removal I've experienced, but it certainly wasn't the best.