Alibre Design vs Ansys SpaceClaim: Which is best for you?

I'm using Alibre Design Pro for both machining and 3D printing projects, and really enjoy being able to iterate and improve my designs quickly, from concept through to finished product; Alibre is a good tool to have in my toolbox, at an affordable price.

Frequent errors introduced extra lines when mirroring a sketch - hard to clean up. When doing a "save as," it defaults to the last saved file rather than the file it came from, so many drawings end up in unrelated projects/files rather than the project file.

The wide variety of tools available helps in creating and removing features and also for splitting and joining two surfaces.

Also have problem with large object processing, when program start lags.