Everyone was friendly, the instructors were very patient and knowledgeable, the exercises were conducted with extra safety precautions and only when all students were all comfortable with the tasks, and the company was exceptionally thoughtful with details like ample showers, gear and towels to borrow if you did not bring your own, quality complimentary lunch, plastic bag dispensers for wet clothes, etc. All Stop! offers the cheapest BOSIET course in Houston and is top quality, so it's win-win.