I'm a comfortable size 36 and couldn't even reach the first hole in a size 36 belt. I have doubts that a size 38 will fit me and I simply refuse to buy a size 40 belt. although it looked nice.
Pros
True to size, looks great, great price. I would recommend this belt to anyone who needs it.
Cons
Bulky and heavy, making it inconvenient to carry for a long time.