He said similar inhale, not size. I started with kr808 (cig lookalike) and they didn't work well enough at all, not to say there aren't people that they work for. Cig sized devices hit weaker and only work for ~2hrs b4 needing a charge.
Here is everything I recommend for an awesome vaping experience (before getting into mods of course):
From Liberty-flights (click the 20% discount in upper left):
Riva Lite Kit: $29.99
From crystalclearvaping.com
15 pack of Resurrector cartomizers: $21.50 (free shipping, free driptip), I use two of these a week (and I could easily use them longer), they hold a lot of juice at a time for a cartomizer (2 ml) and are the best cartomizer for ego/riva batteries that I've found.
Juice from a dedicated juice vendor, this is your choice though. Some companies to look into are rawrvapor (they do a great job with menthol, they recommend a menthol option for all their juices), pinkspotvapors for the best drink flavored juice I've found (they are former bartenders as I recall, I recommend their Pink Spot and Tahiti Breeze juices), for a good value try thevaporroom.net (have a special every week with 4 different flavors priced @ $10 for 30ml).
The driptip from the 15 carto deal lets you try dripping on the atomizers that come with the riva kit. The Riva kit also includes cartridges but nobody uses cartridges. Soon enough youll find you're either a dripping person or a cartomizer person (I happen to be a cartomizer user).