I am developing a web application using ASP .NET 2.0, VS 2008 and SQL Server 2005. I would like to Use SSRS 2005 for the various reports I need to build for this web application
I find SSRS is very Robust and provides a very large range of capabilities to suit your reporting needs. I have tried others (Crystal) and did not like it nearly as much. (This could just be personal taste though).
Even for a beginner, SSRS has many wizards which will get you the results you desire and for the experienced developer, you can fine tune your reports with drill-throughs, colors, coding, etc.
I honestly have nothing bad to say about SSRS. The one downside that Dustin pointed out is that your VS version and SQL version are different. I have an app that is in VS2005, but uses a SQL 2000 backend and I have to have my reports separate in a VS2003 project to get them to work properly.