I bought a lot from MBV. It's not premium but I would say it's the best among the cheap ones which I find it's very economical to vape, but same time... if you're not into complex taste, MBV so far the best I have ever tasted. Nothing comes close. I've tried a few. Peach rings is superb. Taste like nestea peach tea if you like that. Pink champagne is my all day fav vaping juice. It's a little complex mixture of strawberry? but not exactly strawberry with soda? it's a mild taste but would linger a while in your mouth. Have no idea how to describe. Root beer and pina colada is very nice too. Other flavs are fine, but not my all day vape thing but tasty - butterscotch, hazelnut spread ( taste like nutella just a little dull on choc maybe cause i didn't steep long enough).
Premium ones as far I've tasted - 5pawns gambit is really good while grandmaster is not even as tasty as MBV peanut buttercup. There's totally zero on peanut butter taste on grandmaster - disappointing. Space jam astro is not bad. Monkeyvapes juices aren't bad too. Mr e-liquid mountain dew is great. Alpha vape hoops is great too - so far the best mixture melon and creamy taste i ever tasted. Jameson's amelia is great too.
Side notes, MBV steeping.. I usually buy 30ml-50ml bottles. However I think steeping really depending on different flav juices. If your juice have strong smell, you may achieve the flav you want quicker. But to be on safe side, just steep it at least 10 days. I've tried steeping thug juice which usually take 1 month. If you want the best taste, thug juice aren't suppose to be in that colour. It looks really red. Ecto looks clear orange after steeping.