This remote desktop client works on windows, mac, and linux.
After installing the client, open x2go client. You will need to create a session and will need to fill out three text fields. You may keep the default on the rest of the fields.
It is not obvious but you click in the following area to connect. Here is a screenshot to assist.
You will be prompted for your password
First time you connect you will have to approve a ssh fingerprint. Here is a screenshot.