Your review: it's durable and the arms are removable as advertised. However, there was no indication that the hole in the seat was too small for a man. The fact that it is elongated made me assume that the hole was too, but it is simply too small for me.
Pros: durable and flexible arm setup, i.e. with or without. It fits the elongated toilet bowl and is easy to install.
Cons: the hole is not elongated and is smaller than even a regular toilet seat opening. I have an elongated toilet because I need the elongation and this seat does not allow me to have that. Perhaps it would work for a woman.