I have the RAS 115 for over an year now and it has become one of my basic take along tools for any project involving wood, paint, flooring, etc.. I will put it in the same category as the Fein multimaster, till you have one you don't know how good it is. It has saved me so much time on so many project, I can nearly bring myself to say it is under say that it is over-priced [crying]. The pad has a tendency to overheat and you have to learn how to pace yourself and give the pad the chance to cool down every so often. On the other hand you don't need to put much pressure on the pad when you are using Saphir and that will reduce the overheating.
A great little gem.
Bruce