1. Have you ever used any vape gears by UD? If you not, share your your impression on UD brand.
I have not tried anything by UD, but my impression (based on others that have used the IGO drippers) is that they are make great equipment.
2. What features do you like most about this Simba RTA?
I would like to try a tank with the topfill feature, so I think that is what I like most.
3. What coil do you prefer to, OCC (organic cotton coil) or ceramic coil? Why?
I prefer OCC just because I have not tried a ceramic coil yet. I am very interested in trying the ceramic, though, but I have had good experience with OCC.
Thank you for the contest!