A few things to consider deciding between the SVD and MVP.
MVP is cheaper, has massive battery life but it is a chunky box. (In a Volvo kind of way)
Has built in batteries that need to be charged via mini usb lead and to my eye is nowhere near as attractive.
You have no option to adjust it or try different configurations as far as size and battery choices.
I would say pay the extra and get the SVD as you can run the 18650 which will keep even a heavy vaper going for a day, run double 18350's if you want to a bit more power and accuracy and a single 18350 if you want to wind the tube down and have a much smaller and pocketable device.
Basically the SVD gives you choices the MVP doesn't, if I'm out for the night I use an 18350 and an Evod which makes it a bit more stealthy but still packs a punch.
I run an AGA-T2+ and totally love the vapour production and flavour but 2 things to consider,
You will need to be able to build a coil of 1.2 ohms or over or it won't fire and you won't be laying it down between puffs or it will leak so even though it's stable standing on end a stand or support is worth considering if you are a clumsy type like me.
I loved my Vamo but moving on and up to The Innokin SVD was perfect for me and has improved my vaping experience. So I'd say get the SVD kit and enjoy the iClear 30's during the day and relax at home with the AGA-T for a full on vape that's pretty close to mech territory for the price.
These points are just my personal experiences and opinions so some may agree and possibly a line of people wanting to disagree, the secret to vaping isn't coil building and device hunting, I believe it's working out what you need, a bit more complex for the twiddler or hobbyist or plug and play for those needing nothing more than a nicotine delivery system.
