, Harlequin wrote

No, it's crashed on me as well quite a few times. Blend for Visual Studio is also very sub-par in terms of quality. The new Blend does feel like it was rushed out the door...

I think the whole Blend situation is laughable in any case. 

It's now 11 months since Silverlight 5 shipped, and yet there is still no official version of Blend to support it; only previews.