I was also not impressed with MBV. A couple were ok and a couple went in the trash. The way people rave on ecf I was expecting alot I suppose. In the end I felt the juices tasted a bit "cheap". Seems that a ton of people love them tho, I guess its just different strokes.
If you notice their post count, a lot of MBV fans are still relatively new. I, too, was blown away by the prices and the fast shipping... but I soon realized that, unfortunately, almost everything I ever tried that wasn't butterscotch, caramel candy, or caramel coffee, especially the fruits and sweets, tasted like sweet tarts. Everything. It didn't matter if it was supposed to be melon or raspberry, everything tasted like sweet tarts [edit: or pixie stix]. And something about their cream just made me gag. It tasted and smelled like hair product.
As vapers grow and experience and try new things, even the pricier stuff, their taste buds may change. Granted, you can't beat MBV's prices, and their shipping and customer service is stellar, but in the end, out of six or seven pages of flavors, I only found two I can honestly say I like: butterscotch, and caramel coffee. Unfortunately, caramel coffee wreaks major, major havoc on all of my cartos, even my emergency clearos. So... Yeah, you get what you pay for.
THIS IS NOT A KNOCK ON MBV, they are great for entry level, new vapers.