Much of this is subjective because it's down to personal taste, but after about 6 months of living with them, I couldn't learn to like the GX50's. Believe me I wanted to, because they looked stunning in the flesh. First impressions were very favourable, but as I listened to more and more music I knew well, I realised they somehow managed to make everything feel like it was happening in the next room, rather than the one I was in (when compared to other combos I'd owned previously). Formerly exciting tracks sounded lifeless and 'meh'. And they couldn't get piano timbre right either. The more I listened to them the more faults I seemed to discover (not in their build quality mind you, which was awesome - they are a truly beautiful speaker to behold).
The same was true with movie Blurays: I had the partnering GXC150 centre speaker, which again was a magnificent speaker to look at, but sadly managed to suck all the excitement out of movie soundtracks. My former MA Radius R270HD floorstanders / R250HD centre were far superior at this particular task, in movie soundtracks and multi-channel music.
My personal feeling is that with the Golds, you're paying for components that may be expensive to make (the ribbon tweeter), but actually don't sound anywhere near as exciting, dynamic and timbre-wise, as accurate (especially with piano) as their cheaper Silver siblings. My choice would be the Silver 1's every time. My ideal MA speaker would be the GX50 cabinets (to look at) with the Silver 1 mid/bass driver and tweeter (to enjoy listening to).
In the end I bought the Ruarks in my signature, 8-10 year old speakers which outgun the GX50's in dynamics, timing, naturalness, voices and excitement despite the fact that their comparatively simple components were much cheaper to make and even new, would have been around a third to a half of the price of the MA golds. Which is why I'd heartily recommend demonstrating as many speakers as you can before pulling the trigger, and never assume that more expensive must be "better", because so often it just isn't the case.
But if YOU like them, go for it, but just audition plenty of other speakers first.