Even harmful if considered as substitute for reading the official docs page.
Liz: Qd Qc, 2nd, 1st, 1st Riz: 4s 9s, 1st, 2nd, 3rd Siz: 10d Ad, 3rd, 3rd, 2nd
There's no indication from the post that there's any more value to this article than simply reading the docs about a well known tool.
Even harmful if considered as substitute for reading the official docs page.