The MGC is my first 6x6 and I've owned it for about 3 years now. Based on personal experience, I would recommend this to speedcubers who have just gotten into big cubes. The MGC is really cheap but I can still average pretty decently for my skill level. Definitely a nice cube for big cube beginners.
If you are more advanced for 6x6, the MoYu AoShi WRM is probably a better choice as I think, in my opinion, that it is more stable and turns faster. Just keep in mind that the MGC is considered a regular size for a 6x6 (65mm) and the AoShi is around 63mm which is significantly smaller. You would likely have a better grip on the AoShi if you have small hands.
Overall though, the MGC is really good for its price as you can still get good solves with it. I really like how blocky it feels which is satisfying.