If you're traveling by car and plan to park overnight or for couple to few nights, then the parking suggested by Ramin (by piazza della calza) is quite expensive at 48euro/ day as they no longer has 20 euro flat rate, I regret I didn't do more research before going, luckily I found Garage la Perla the next day which is just a bit further down and they do have 18/day, aside from this the apt is nice and cozy, the bed was comfy.