Having used this almost every day since receiving, I can honestly say that this little tool is amazing and a must for your makeup bag! Yeah, the first few attempts are a little rusty but you soon get use to it.
My only trouble now is finding the perfect brow pencils, which is a bit of trial and error. Another thing worth noting is that if you're in Australia, Mecca Max's Brow Guru Micro-Matic pencils fit well, glide on the skin nicely and the pencil itself is nice and slim.
10/10 recommend!