I have the RX 2/3. I got it about 4 months ago. After two months the wire came undone. This is because pushing the fire button pushes against the contact. The wire is also very thin. I got the wire replaced. Also, the paint is coming off on the top of the mod. It's a black one so it looks ugly. Also, I've got a RDA and a tank that it doesn't play well with due to the 510 pin. That being said, I do use it everyday and I like it. I use it for dripping as I think the TC works fine for me.
I got a Battlestar about 2 months ago. It takes every tank and RDA I have, it's smaller than the RX, the paint is holding up and it vapes as well as the RX. If the RX were to shit the bed tomorrow, I'd buy another Battlestar.