The vampyr rockbass is alil rough ard the edges for me. The neck feels slightly clumsy and the instrument doesn't feel comfy overall. Weight is lacking and the tone has a very "factory emgs/ mec" sound to me IMHO.
For the price of a warwick vampyre rockbass I would recommend an Ibanez SR bass or a Jap P bass.
I am not usre abt the VAMPYRE SN, but usually their non-rockbass stuff feels and sounds very usable.