If you've got a vaping experience you like then is say enjoy it and stick with it. I had a bad experience with the Cana so I can't recommend it. My mod set me back $200, atlas by tatroe and I think it's well worth it. I've got a ranger preordered as well. Both are 50 watts and the closest I've gotten is 38 on the atlas. I don't build below .49 myself.
I've never heard of anyone that enjoys a lot of power with a non rebuildable. I assume anything like a protank or a carto would just scorch over 12 watts. I've got two drippers and a kayfun. I don't even run the kayfun below 1.5 myself but that's a taste thing.
So if it were me I wouldn't be interested in high power if I weren't using a rebuildable dripping atomizer.
If you're happy with what ya got then enjoy it. Once you go down the rabbit hole and subohm and drip you'll be hooked though. Well probably. I get tons of flavor out of mine which is why I love them. But for Bryce's juices I prefer lower power and higher ohms.
Rebuilding is easy, just DO YOUR RESEARCH and get an ohms reader thingy. It can be dangerous. You gotta learn about battery safety and building and what not. I'm not expert though and there's tons of thread chocked with people with way more experience than me that love to help here and other forums.
I'm fairly certain that whatever tank you have will work with the ipv though. Just wouldn't recommend cranking up the power.
Hi Bryan. Your juice is awesome. I'm cleaning the nasty grants out of my kayfun so I can get your custard fired up the way I like it!
Well, I can't rebuild due to bad arthritis.
I do love my ZNA and I use Nautiluses.
They do fine at higher powers. I use the 1.8s.
But I don't usually go above 18. I find no need too.
I gave Bryce's flan @14W.
Dragonfruit Pudding @13W.
Cannoli @13W.
Dragonfruit @18W.
Most Single fruits @16-18W.
Most Cream based @13-15W.
Complex juices like OMG Luquids ... @18W.
Raspberries @20W.
The flavor is really great and very similar to a Dripper taste IMO.
I don't feel to need to go higher personally
Taste is so subjective.
Doesn't have to be a high end to start. Infinite makes some really good clones under $30. Once you're hooked then you can start thinking about authentics 
it allows you to line up the logo with the logo on your device and 2) and the more important one, it helps greatly helps to retain your air flow adjustment when removing the cap to inspect your coils and wicking as well as keeping it in place when tightening the cap. You can see it in the flick......
