clintmartin
Well I bought it. It was only $49.99 so...why not.
My first impression is it's well worth the $49.99.
So you must have owned v3dot5 then ? yeah well that would make it an almost no brainer.
One thing I forgot (and I'm sure you are all over it) is the tweaking to be had down at the amp component level/schematics, I liked the old 3dot5 tweaking better than 4, seemed more intuitive/easier, I would just mainly mess around with valves and bias etc, but it gives noticeable results, and sometimes can help get you to where you want to be if you are close but not quite there.