This is not necessarily a final answer, but so far I like it. It seems to have everything I need and some stuff I don't need....yet. I think the Vamp is nice, but it wasn't what I needed and not as useable live. It is also $260 cheaper. W are not exactly comparing apples to apples either. My old setup is this Boss TU-2=Boss=CEB3=Boss GEB=Sansamp Bass DI. That is what I need to duplicate, but I also wanted to experiment with new effects and more amp emulation options. I believe this is what I found! I have never played through a SVT amp, but I would dial in the settings on my sansamp and i liked that sound, so I wanted to duplicate it. I think I found my sound after playing with the preamp section for a while getting the right eq. settings and gain. I got the chorus sound I was looking for. I will be able to get the eq sounds at the stomp of a button that I wanted. I should be able to mess with some different amps. The octave tracks pretty well. It tracks better than the Beringer bass vamp. It is a little confusing at first, and I am not sure I am the master programmer yet, but it is way easier to set up than the vamp. There are several parameters that can be set on each effect. That is awesome, because they are often set rom the factory at unlikeable sounds. I can't wait to make a patch with the octave and the harmonizer for an Akai Unibass type sound. I bought the Unibass and sent it back, because i couldn't find a usable tone out of it. With all the options on the GT-6B I hope to find it. It has a DI out and a headphone out. This will be nice for playing at my church. I don't want to cart my amp around all of the time. I am trying to find a cheap wireless headset so I can use it as a monitor. I hate not being able to hear myself through the PA. I think this is what I am looking for. I plan to test it and put it through it's paces before I hang on to it for good! I plan to make a good frettless patch. I want a vibrato patch. I am having trouble finding a nice overdrive patch, but I wouldn't use it much anyway, but it would be nice for when you need some added dirt! There is much more that I will look into, but that is it for now!