Unless you want drop bars, consider the Bike Friday pakiT. I love mine. It's very lightweight, actually folds quickly to drop in a car trunk (bike one way, uber home, for example). You can even get it with belt drives (no chain mess) and internal hubs (minimal maintenance). It's fast and cute and I'm 5'4" and the small size frame fits me really well (you'll be fine), unlike the brompton which had too much reach for me. Here's a pic of mine:
