Should I even listen to them?

I’ve been dating this guy for about 4 months now. And he’s honestly great.. he treats me like a queen, he likes me for who I am, and we honestly connect on so many levels... my mother and sister tell me I “can do better”. I’m really close to my mom and sister, and respect their opinions, but at the same time I feel they’re being extremely judgmental... there haven’t been any red flags thus far, and I just don’t even know what to feel...