via Sixt) was around €100 for the day. We hadn't booked a GPS but we all thought it would be a good idea to get one so when we mentioned it to the sweet girl at the counter, she said she could either give us a GPS for €10 or she could upgrade us to a bigger car with a built in GPS and it was an automatic for €25 more. We figured eh, why not? Even though I drive stick, we thought it might be a safe move to go with the easier car since we were in a brand new environment anymore and we went with the upgrade.
The upgrade was for a BMW 5-series station wagon and it was on the huge side, compared to the majority of cars we'd seen on the road (mostly smart car-sized vehicles). Plus, I think station wagons are hideous. No offense to anyone who owns a wagon but I feel like they're meant for grannies. Aesthetics aside, admittedly, it was much more comfortable and our luggage could be piled right into the back without any trouble.
We stayed at the Hotel Alexandra which was a cute and tiny little hotel. It was nice and affordable at €75 per night. We booked through Hotels.com but they just asked for a credit card number to hold the room and we actually paid when we were checking out. There was a city tax that we had to pay as well (which happens all over Europe) so our total (in USD) was $105. The 'P' is obviously where the parking garage was located.