Compustar is a great company. I have a Clifford RSX 3.5, they are under the same company as Directed, Viper, Python, Orion, A/D/S, PPI, Concept. The Viper and Python also have the same version of the RSX 3.5 under their own names, its the same components but the pager key chains are different colors than the carbon fiber clifford. I would either do Compustar, Clifford, Viper, and Python. This isn't saying their aren't any other good ones out there, I just don't have any experience with others.