This topic has already been covered in at least in two other separate threads in the past.
The Oak Twilight is a rebranded Tavelo Arow frameset. Tavelo originally wanted exclusive rights to the design on the Arow, but realized they needed to offset some of the initial startup expenses.
I've ridden my Tavelo Arow for 1000km so far. I can confidently say it's the best Chinese branded bike I've ever ridden in terms of handling, balance, and overall riding dynamics. It's a pure race bike that will eventually replace my beloved Giant Propel.