Tried the Wallet installation from this site https://nemtech.github.io/wallets.html#installation

Some guides could be clearer tho some may say that "it is obvious".

The isntructions lead to https://nemtech.github.io/getting-started/setup-workstation.html
where is a note: "Symbol CLI requires Node.js 12 LTS to execute."
A small guide would clarify that in some cases you need to install Node.js (from Nodejs.org).

After the Nodejs is installed, then it is clearer to say directly that
          + Start Command Prompt in Windows/Linux

When running the command "symbol-cli account generate"
in the guide is missing these rows:
          +  Select Import type :         Private key / Mnemonic      (help? what is the difference in the usage...?)
          +  Set the Password for the new wallet :

In the end there is a note: "You should see the account credentials in your terminal."

Well, in this case there was just:
"ERR Check if you can reach the Symbol url provided: http://localhost:3000/block/1."

No guides how to solve that ERR ....