I mention the GHL Control Center as it is the foundation for all of their products on the PC platform, and functions the same regardless of device (arguably a pro, but I imagine I would have the same challenges with it until I got familiar with it). Programming through the Control Center makes more sense the longer you do it, but at first I had a hard time with the translation from German to English and I back to my first point there isn't as much out there compared to Apex to help troubleshoot, so the less-than-savvy computer folks may struggle with GHL more than Apex to accomplish the same goals.
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They can achieve nearly the same goals for all of us hobbyists and having both in this space will only make our lives better through competition