Yes the Goblin Mini is a noisy little firecracker. Sounds like twin Webber carbs, with lots of snap, crackle and pop thrown in.
Really doesn't bother me at all as it's the best all round vape I've had since I started vaping.
I can understand why it would be a negative for some though. It's certainly not as refined as a Kayfun v4, but then again it does give close to RDA performance, without any of the mess.
It never leaks or dry hit, and is incredibly low profile for an RTA with a sizable juice tank.
I picked up my first Lemo 2 the other day, and for me the Goblin Mini leaves it standing, has better airflow, better build quality, better ergonomics, a better build deck, and is of course dual coil.
Have to say I love my Gmini