I'll say right now that I have the MFLB. The cheapest non-POS vape there is and IT IS AMAZING.
The first time I used it, I packed a half trench. Thats probably .05g for the people who like numbers. This proceeded to give me a high equivalent to my first time smoking. I was obliterated. Keep in mind that I was smoking about 4 times per week at that point. The high was amazing.
A month and a half later, I did two trenches between 5 people last night and I was thoroughly baked. I've been going into summer mode and using it every day in my room. Even when my rents are home, theres such little smell its only noticeable if you were to walk into a small room while it was in use. I've been vaping every day and using about a half gram per week. Mine cape with a whip attachment so i've been hooking it up to a bong and vaporbonging it. Its great. The only downside is that it is only really good for chill vaping, not really a party device with lots of people. Teaching people is kind of a bitch when they have no clue how to use it.
The vaped bud is still useful. I've been doing 1 whole bowl of vaped bud and getting a super personal, talkative high that gives a really clear mind and perfect for a party. Super social high.
This is my 100% truthful and nonbiased review of the mflb. For 100 dollars, it was well worth it to me.