It should read, CS is written on an ancient code base that throws up on itself if your project gets to big, no purposeful " engineering " required. The fact that Designer was " just " updated to 64bit should send some flags up.
Though, as mentioned, it probably is not an issue unless you are doing a very big project.
CS can open an AD schematic but not board file unless you saved your Designer board file a certain way. I think AD can import CS schematic and board file with out too much trouble after a certain version.
I would suggest you read through the posts here and get a feel for how things are. The are many that are happy with the software. Myself, I am more disappointed with the lack of support and good documentation. Folks that get along better with the software seemed to have come from a Designer back ground.
OK thanks.
I find the "the software has been engineered to make it impractical for use with large designs" rationale a bit... funky.
The cited "limits" seem adequate though.
Can designs made with CS be imported in AD? They talk about the other way around in the FAQ, so I may have missed something but this point doesn't seem to be very clear?