I’ve used pretty much the gamut of sticks, including Happs Competition and Seimitsu, and the MCA is a mixed bag. My first custom stick was an MCA (ripped out of a defunct arcade machine) so I’ve had quite a bit of experience with them.
The throw is very small - it takes little distance to hit the edge. This is in contrast to the Happ where it feels like you’re swinging a cat in a barn. I find double tap motions like dashes easy on the MCAs. I would be surprised to find people that prefer a wide throw to a small throw, so the MCA is pretty good here.
The MCAs have distinct corners, unlike the Happ competition - which is a full smooth circle. Which is better is entirely subjective.
The place the MCA falls down is the feel - almost every other stick uses a spring, whereas the MCA uses rubber, which is about as bad as it sounds. Some people like stiff sticks, but I don’t think I’ve ever met someone who prefers the MCA feel to other sticks. They do loosen up a bit with use, but still never feel like other sticks.
Personally I have no problem with MCAs, I actually prefer them to my Happs simply because the throw is so much smaller. I definitely don’t consider them to be unusable, however, I vastly prefer my Seimitsus to either.
My suggestion would be that if you actually have decent competition in your area and they use MCAs, you may as well get used to MCAs. If you don’t frequent the arcade, or the competition isn’t that hot, do yourself a favour and get something better like Seimitsus or Sanwas.
Best of luck,