ChromeMarks is super simple to use: just open it up, pick your Google account in the settings, and hit Sync. You don’t even need to enter your password: it just links directly to a Google account already on your phone. It’ll sync all your Chrome bookmarks to your phone in just a few seconds. Note that you need bookmark sync enabled in Chrome for this to work.
It doesn’t sync your bookmarks directly to your browser; you have to open the ChromeMarks app to access them. This is a downside if you’re using the default Android browser, but it’s nice if you use something like previously mentioned Dolphin, since it’s compatible with any browser you’re using.