I haven't tried the MFLB yet. It looks very interesting, but the batteries seems to be too much hassle, and i don't like the idea that you cannot change the screen if needed. Plus it's a bit expensive IMHO. I will maybe buy a second hand one some day.
It's true that the handcarved VG's just look like a regular wooden pipe, especially the walnut or teak ones. As I said I couldn't taste the wood after a couple of weeks of use.The thick vape clouds coming out of it can look like "regular" smoke to inexperienced watchers
Be aware of the smell thus! Of course it's very weak compared to combustion, but one can definitely notice it! And YES it is persistent in a room.
I havn't used the DBV yet, but have a SSV., not very different. Excellent device, you can connect it to a bong, but it's big, heavy, electrical, has glass pieces which can break etc... As I said I use my SSV and my Volcano maybe once a month, while the VG's serve every evening
. If I only could own one vaporizer, it would be a VG.