I have had this model the MVP 20 W for a week now and have a few thoughts I wanna share. first off this is a power upgrade for me I had the MVP 2.0 but it had ego threads not 510 so this got in the way of the vaping I really wanted to do. I wanted a mod that I could do RDA builds on it and a Mod thats good for tanks I have some cheap ones , a pro tank mini 3 and they work well . I picked up an Aspire nautilus this things is great , good vapor production excellent flavor and just looks damn cool on the MVP 20 W. I have two RDA's a Doge Compition I bought it by mistake its a prime cloud producer Im not into clouds I'm into flavor. I just got in the mail the Magma RDA this thing rocks big time it give ample vapor on the middle hole setting and huge amounts of flavor . I drip /use ruthless, ec blends and a generic company I have no clue where they are from. Back to the 20 W it handles everything I put to it . the tanks have plenty wattage, the cheap tanks are good but when it comes to RDA's and its probably my builds but i had a 1.3 ohm build double coil on it and it took a bit to heat it up on 20 watts I took off a coil and had a 2.5 ohm build and it chucked vapor all day. and the flavor got mad good double the ohms and it performed awesome at 15 watts. I was undercharged a bit so this could be it . I love the fit and finish of this thing I dropped the MVP 2.0 in the street i got run over for an hour at rush hour and still worked I assume this one is built the same its just a simple device with out all the compacted menus others have i put in the wattage and I vape its that simple and its small it fits my hand perfectly and i can put it in a large pocket or my secret pocket on my jackets with ease. I never thought I would use the chargeing function I was 2 hours from home and I had to use the MVP20W to charge my cell phone it worked great and I had all day left to vape so cool. i believe this is the Mod I will keep and use till it dies someday if you are considering one go for it i gout mine for 38 bucks and its well worth it as I learn to build coils I'm sure this thing will produce the electricity i need for all my builds . I was thinking of a 100 war box mod but then I figured why I dont use any higher than 15 watts so far with success. happy vaping Remi love.