Ulead DWS2 versus Adobe Encore 1.5

I've been using DWS2 to author my DVDs for about a year and was just gifted a copy of Encore DVD 1.5. Can forum members speak to what you see as the relative strengths of one over the other in terms of features, stability, and ease of use. That whole "if it ain't broke..." thing speaks loudly to me when contemplating a new learning curve--but if Encore has significantly better stuff, I'd like to hear about it.

thanks!