Man it sucks to see all these negative answers/opinions instead of just answering the question.
Yes it maybe a "dead software" but it still has tons of comparability. Hyperspin is a huge PIA to get up and running and yeah LaunchBox/BigBox is cool, some people don't wanna pay $50. Plus it's still ALOT of grunt work to get BigBox set up pretty.
Fact is MA is a straight up EASY to set up front end that doesn't require a ton of nitpicking and yes does look good. The Hypermax theme as well as the older Hyperspace theme plus a handful of other themes make MA look great. I started with a Raspberry Pi which is still my go to however I was gifted a mini pc and 2tb drive with Hyperspin on it that had just been gathering dust.
Honestly MA has found a resurgence in Europe and South America. I'm fortunate enough to be fluent in spanish so watching the only available setup tutorials in spanish or portugese were pretty easy to understand. Currently I got the following systems set up and working no problem in MA: Atari 2600, NES, SNES, N64, MasterSystem, Genesis,PC Games and future Pinball. Currently working to get Pinball FX2 to be a standalone and to launch tables individually. Then i'll move on to Taito Type X, MAME, NEoGeo, Saturn, Naomi, Sega M2 and 3 then finally handhelds. For reference here's my current machine:
AlienWare Alpha i7 processor, NVIDIA GeForce GTX, 1TB internal, Windows 10. Have not had a single issue.
So don't know some of us because we want to use an old software. If it ain't broke don't fix it right?