The fabric on this is quite heavy - it's much more like corduroy than the normal rather thin and smooth fabrics most suit coats are made of.
I wear an XL shirt and the XL size of this fits well - I was pleased with that, being a bit leery about getting things like this online.
The buttons and stitching seem well-done. There are a good number of pockets (one inner-left pocket, outer side pockets, and an outer chest pocket). As with most jackets, they have a basic stitch holding them shut (and another holding the flap at the back together).
These can be handwashed and ironed on low, or you can dry-clean it like any other coat or suit.
Because this comes in a vacuum-seal bag you'll probably need to iron or steam it to get the wrinkles out - that is one unfortunate point of buying online.
Overall this is a nice coat, it matches the pictures, and the fabric seems quite durable.