While researching popular Australian beauty products, I found that most Aussie beauty bloggers and YouTubers love Face of Australia's Liquid Eyeliners. I first purchased the Black Liquid Eyeliner (because one can never have too much black eyeliner!) to see if I liked the formula, and after I wore it a couple of times, I went back and bought the remaining three colours.
The Face of Australia Liquid Eyeliner comes with a small brush, which I found relatively easy to use. It's faster and easier to use than a gel eyeliner with a brush, however I think felt-tip liquid eyeliners are a bit easier to use than ones with brushes. Since my eyes are bit hooded, it took me a bit of practise to find the best way to draw the most flattering line. For me I find it easiest to lie the brush flat, running parallel to my lash line and drag it across my upper eyelid so the sides of the bristles keep the line straight. I start in the middle of my eyelid, then drag the line to the outer corner, do a flick/wing and then try and get a thinner line connecting from the inner corner to the middle of my eye. As with any liquid eyeliner, I wouldn't recommend this for the waterline as it can cause irritation.
It goes on wet and glossy but dries to a matte finish. I found Brown, Navy, and Black to be opaque in one swipe but Charcoal took a bit of re-applying to achieve full opacity. I haven't had any problems with smudging or fading, it lasts all day and washes off easily with water (it's not waterproof). I love how it comes in colours other than black which is great for days when I don't want something as harsh and severe as black eyeliner.