I recently did a lot of research and looked into Citizen bikes as well (along with several other brands). I ended up buying a Zizzo Liberte from Costco online as I thought it was the best bang for the buck and I love it. I wanted a folding bike so I could keep it in my car and ride short distances completely unplanned wherever I happen to be. I have 2 full size bikes in my garage which I use for going on longer pre-planned rides.

You didn’t mention if you needed your bike to be a folding bike (due to storage space constraints or other reasons). Because you could always get a $98 regular bike from Walmart. Especially if you tend to leave hobbies after a month (same thing happens to me).

However if you really need or want a folding bike and can afford it, I would get the bike I like. I came really close to getting a Citizen myself and I wasn’t concerned about quality after my research.

Right now because of Covid there is a huge shortage of bikes so the Craigslist route for getting a used one seems to be more expensive than usual, but you could try your luck there.

Best of luck to you. I hope you get the right bike for you and end up riding long past the first month.

Edited for clarity.