The madvapes VV mod isn't bad, if you just want to dip your toe in the VV pool before you dive in. It's not going to have the best battery life and it's not going to hold up long term. You're going to want something else for daily use, if you decide you want VV. I'll also say that while the Provari and Darwin have a lot of adherents, I think they are a little to complex for this market. You never know what new gizmo you are going to want to screw into one. There have been several posts that say the these mods have problems with the dual coils. Something like the buzz pro is more appropriate right now.