Sketchfab.com is a legitimate website, but it has received mixed reviews from users. Some users have praised the platform for its unique features and the ability to share 3D creations. However, there are several negative reviews highlighting issues such as poor customer support, difficulty in obtaining invoices, and increased costs with fewer features. Additionally, some users have reported NSFW content and scammers on the platform. Despite these concerns, the website is considered secure and trustworthy by some review platforms.