So far based on my research JasperSoft has turned out promising open source reporting tool… Matter of fact I am currently working on a huge project wherein I have started converting and building reports using JasperReports/iReports…
Every reporting tool has its own learning curve. The support group from and for Jasper and the quality of response that I have gotten so far is good.
Again at the end of the day it all comes down to what your business / organization needs.
