A vital artist in the Hong Kong underground circuit, Simtub plays DeepTech/Melodic Techno and various micro genres of House and Trance music. His sets are known to be evocative and energetic, backed by his understanding of what galvanizes the dance floor. Simtub grew up during the intersection of the hacienda movement in Northern England amidst the rise of UK underground rave culture and when superclubs such as Miss Moneypenny's, Turnmills, Cream and Fabrics dominated the landscape. This period in time heavily influenced his musical style and his sets continue to paint a unique narration of classic influences. Simtub is also the co-founder of After Dark Sessions, an event night originally conceived to promote melodically driven underground music to the less exposed cities around Asia. “Humans have an intrinsic need to connect, and music has this ability to create instant connections among people. I love to use my music to move crowds, to forge that sense of unspoken communion".

Darka kicked off his DJ career in late 90s and was the champion of "Hong Kong Pioneer DJ Competition" in 2003. It was a milestone of his spinning career and made himself a well-known figure amongst dance floor. Since then, he has devoted all his vigour to the development of electronic dance music in Hong Kong. His name has come across with many notably DJs and producers, such as Paul Oakenfold, Nick Warren,Timo Maas, Santos , Jimmy Van M, James Zabiela, Tall Paul, Evil Nine, Radio Slave, Tiefschwarz, Butch, Meat Katie, Peace Division, Elite Force, Stelios Vassiloudis, Takkyu Ishino石野卓球, JDS, John Graham (Quivver), Phil K, Adam Freeland, James What, Noah Pred, Luke Fair and Andy Moor. The co-operations with those big guns strongly influenced his music styles and techniques. Deep House is his signature, loops and effects are his trumps. On top of the ones own effort and passion, no doubt Darka's achievements are more or less in connection with his respectable "Master cum mentor" - Mr. David Lam