Hi Guys and Girls,
I don't want to be negative and I apologize, but this is just my opinion and in the last 25 years I haven't heard of any normal sized powerbuilder project which could be migrated successfully - without tripling the estimated time - to any other language.
It's very true that the C# migration tool might help a lot, but the C# dataobjects, models (deprecated?) and stuff don't have all the same properties and possibilities as the powerbuilder versions of them.
Lots of powerbuilder applications have no (updated and 100% correct) specifications and therefore you'll have to go to the code, line by line.
That makes me starting to wonder if this is not going to be one of these failed projects in lots of companies (though improved by Appeon's new features). Believe it or not, a LOT of features are in the GUI, so things could really become very hard to migrate.
Just my 2 cts.
For new projects, Yes, Appeon is a great solution!
Good luck on your journeys!