There is a lot to like about Riga. I found it to be a clean city. The old town is worth spending a day walking around. I was lucky the sun was shining and it added to my experience. Everything in Riga is easily accessible by foot. I would highly recommend visiting the Museum of the Occupation of Latvia. You get a sense of the recent history. There are plenty of places to eat, some of which are good value. Also plenty of coffee houses for the coffee lover.
Insider Tip:Take your self out of the old town and wander admiring the art nouveau designs on the buildings.