I've never been ripped off there.
PWEI, are you sure that i will get original branded laptops in that 2 underground passages.... is it walkable distance from central station....
Yes I'm sure you can and yes it is very walkable (ten minutes or so I guess), plus it is easy to get to (straight down one street).
Here's a link to the website of the market
It's in Polish but you can use google translate on it.