I have the herbalaire and i swear by it!! I hear what the guy above me is saying about the slow pump but you can do what i did and go to any fish store and get a better aquarium pump. The only down side i have with it is having to use the two plugs when you use the bag (1 for pump, 1 for vape) but thats the only down side ive ever had and its not a big deal for me its just diffrent from what i thought it would be. I also have the vapir one and i would have never bought it if i knew what i know now. It LEAKS like CRAZY! I have tape all over mine and it still leaks.

If i had the money id get a volcano but i dont so i went for what i think is the next best thing for me which is the herbalaire. However, i have been hearing about alot of vapes on some of these threads that people love and ive never even heard of. I guess after i got the herbalaire i just never worried about other vapes. But i can tell you i have had herbalaire for over a year and no problem and it seems to be built very solid.
Enjoy!