Firstly, the view of the Clinic is that any treatment approach which gets comparable or better results than others, without the side effects, is a treatment worth considering. In the case of radiowave therapy, it is also a treatment worth continual research to get its clinical outcomes evidenced over the long term. This research is happening (Radiowave Therapy Research Institute).
Chemotherapy is a topic of continual debate.
The Health Report provides a fascinating transcript of an interview conducted by Norman Swan of two Australian medical specialists views about chemotherapy. http://www.abc.net.au/rn/talks/8.30/helthrpt/stories/s1348333.htm
This Megadisc article brings further commentary to the chemotherapy debate.