steam crave is very well known company. They produce atomizers and they are really good at it. I have Aromamizer VRDA for some time and I must say it is my favorite dripper atty ever. I am getting very good flavor and a lot of vapor. Top cap does not need any airflow lock, because it takes air from the top part by the drip tip. So na matter how you place the top cap, you can always go strait vaping. This atomizer has velocity base so making build is simple and easy. Wicking is quite easy too thanks to perfect coil possitioning. And with glass middle part you can enjoy very nice turbine effect. At all I love this atty. You love it you drip it 
