Yes, Twisted Gorilla appears to be a legitimate business. It's a "mom & pop" shop created by a husband and wife team. They offer a variety of unique, pop culture-inspired t-shirts and apparel. The company has received positive customer reviews, with a rating of 4.93 out of 5 based on 228 reviews. However, it's always a good idea to do your own research and check the latest reviews before making a purchase.