Does practicing Brahmavihara to get insights leads to Nibbana?

I read the books of Bhante Vimalaramsi that is using the practice of **Brahmavihara** to reach a state that is called Tranquil Aware Jhana and then to generate insights from the fourth rupa Jhana. Has anyone of you practiced using this method and reached the Jhanas? Has anyone gotten any insight? In his site, Bhante Vimalaramsi says that this method is much better and faster than one pointed concentration to reach Jhanas. The Jhanas are less powerful and better manageable and getting attached to the joy of them is much more difficult. Thank you, metta