Price for TW is quite a lil expensive but i've heard alot of good complements on their products which made me spent like 300 bucks on an order with the 510 titan mega kit, e-juice, parts and i ran up on a 20% off deal, if you want to wait till december they are releasing a 30% for the company's bday anniversary. the only thing i didn't like about the mega battery pack is that there isn't no warranty against them due to the price. But i'm itching to try my 510 mega kit that i just got today ... waiting for it to charge!
How are you liking your 510 mega??