Hi , I have worked with gSOAP. It's good for platforms not supported by AXIS 2C (ex: Sol 10 when I was using it) where you want to have C++ web services. Else you are better off with AXIS2C. gSOAP is more primitive than of AXIS 2C and you'll have to do a lot of hacks to get things working.
As Samisa says you better use gSOAP list by using it's home page http://www.cs.fsu.edu/~engelen/soap.html. janandith.