The SSV has a poor design
First time I've heard that criticism. The "poor design" hasn't bothered me in almost two years of use. Is that the only difference you notice that would be of interest to someone trying to decide between the two?
is it worth the extra money to get the silver surfer or is da buddha just as good?
The real differences between the two-
Looks- you get a custom glass knob on the SSV that makes the temp setting a lot easier to read, vs. the mark on the DBV dial. You get some color on the SSV heater tube. The units obviously look different. That's purely personal preference.
Functionality- if you like hands free, the DBV is a much better deal, since HF is standard. If you want the option of hands free or standard, you'll have to go with the SSV there. HF heater cover and wand is available and can be easily switched out. Also available is the hands free attachment-not as nice as a ground glass connection, but it's easy on/off. The SSV, due to the smaller exit opening in the heater tube, provides a more narrow air stream into the bowl, and you get a little more vapor per hit. The downside to that- you should move/rotate the wand a little to expose more herb to the narrow air stream. The DBV's hits are more predictable, since the heater opening is larger and the wand position is fixed, due to the GG (ground glass) connection. The SSV, due to the "poor design" (
), is also a little more stable on the table because of the larger footprint. The DBV is NOT easy to knock over though, just easier than the Surfer.
I prefer the SSV in standard mode, over the hands free DBV-just personal preference. If you position the SSV where it's convenient and comfortable for connecting the wand, I think it's even easier to use than the DBV, which takes a little more care, due to the deeper connection you have to make, via GG. It is nice to be able to leave the DBV wand in place between hits, you just have to be careful not to jerk it out of the heater tube by accident.
So aside from the looks and ergonomics, the difference is a slight one in the hit dept. The heater and electrical components are the same. You can upgrade either model with custom glass.