I been using the sunsaver 15 for over 3 years now and not had even the smallest blip of an issue with it! I just ordered a Tristar60A MppT controller and geting it wired up now.
It is a wonderfully heavy piece of equipment which means good sized components and not cheaply made with excellent array of communications on it
So I'd say go with it! I'm going to be literaly starving for the next 4 months from the coast of it but well worth it imo!