We looked at several packages ourselves. In the end it came down to MM and Starta Frame. I’ve used MM for some time and did some of the evaluation on Strata Frame. I think Kevin's MM BO architecture has StrataFame beat hands down. However StrataFrames support site (3 or more developer full time on a private site) and there example applications (several demonstrating all aspects of the framework) and tutorials have MM beat hands down. If you are a single developer I’d say jump into MM and don’t look back. If you work I mid to Large teams I’m not so sure anymore, the rapid support and abundant example’s in StrataFrame my make it a viable option.

Just my 2 cents I'm sure you are wieghing all the options yourself.