Since you're doing facilitated this is the only interview. The Gemeinde doesn't have a say unless there's something really objectionable - such as you being a criminal or not paying your taxes. Next step = wait.
In a few months you might get a letter asking you to again sign that you're still married and living together, plan to stay married and living together, are in a conjugal relationship, etc. After that a few more months and you'll get a registered letter where you have to pay 800 Francs to the Post in order to pick it up. That's the letter saying it's a positive decision barring any objections. A little while longer you'll get another letter saying it's official.
My timeline from police interview to official letter was about 5 or 6 months, IIRC. My memory is getting fuzzy.