People kind of get the wrong image of him since they tend to hear only the 'hustle' stuff of working your ass off for a few years on some project. But he has a ton of other advice too, and much more "sensible" ones at that. Not too long ago he changed his eating habits, lost weight and promoted healthy living. I believe he's also put emphasis on getting enough sleep. He's said multiple times that he knows a lot of people who make 50k a year and are happier than many millionaires. I think he usually gives the "eat shit and work hard" type of advice to people who are asking him for a formula to success on their business. And it is true, you have to work hard to achieve something exceptional.
Talking about 'hustle', I think it really depends how you define it in the first place. You can do a bad, BS hustle by working to get Internet points and validation from strangers on social media. Or even worse, do something to con people out of their money. To me a positive hustle is putting in constant work, not being afraid to sell and market your stuff, and most importantly, starting before you are ready.
I'm not a zealot of the Vaynernation but I have found some of his messages helpful. One of his key principals is to document your journey. I love this idea and I've recently gotten over the fear of doing it myself, posting VLOGs and doing things more publicly using my real name (you can search this username and find out more). Another message is that "you could die tomorrow". Sure, this is a bit dramatic and cliche, but it did give me courage to push on with doing some things that I might have procrastinated on.
Overall, I find Gary's content useful for the most part, especially his insights on social media. If you just know him from 'hustle hustle' type of things, I suggest you try to dig a bit deeper to his videos and blogs. He does know his stuff.