as much as I like the strida I don't think its all that great for the mechanically challenged. Should anything break on it, ur going to be waiting for a replacement part for a while as
they are not readily available at your local bike shop. You could get really good at using JB WELD or SumoGlue, tho. You may also be a tad too short for its riding geometry.
Also, consider how much you will need to carry the bike. A 16" wheel should really be your only consideration as a 20" bike will probably be quite heavy for your build. If the bike could be wheeled while folded, I find that a significant bonus while taking transit or doing some grocery shopping. Defintely look for racks or a well venting backpack as well as lighting and a bell, as you will be immersed in the city! Sounds like fun!