We are considering Microsoft DSL toolkit for creating some abstract designers. I already did some POCs, but would like to get some opinions on the same.

Any one here to share their experiences working with Microsoft DSL Toolkit and T4? Also, any pointers to open source DSL projects will help - Eg. Microsoft Service Factory modeling edition is heavily relying on DSL toolkit.

As OSLO/Quadrant will take some time to get released, I think the only option we have is to rely on Microsoft DSL designer. (See Kieth's blog on the same)

Also, here is some information I already have on DSL:

1 - A Nice Lab in MSDN on DSL tools

2 - A List of Projects in Codeplex using DSL toolkit