This plane is more fully described here - https://robcosman.com/products/rob-c...=2512138305574
The reviews are very positive, but it is presently out of stock and unavailable. If this one has been used at all it was minimal as it shows no sign of usage. Surprisingly, the blade is a Hock blade and is very sharp.
Cosman has a video at the link above on the use of the plane. Retail is $199.95, and though it is a well made tool that obviously functions very well as intended, to me that seems high. This one is like new and will ship to you for $95, payment by Zelle or personal check.