The hotel is perfectly located less than a block away from a Metro station, that, via transfers, can take you almost anywhere in Barcelona extremely easily and cheap. (The subway system is very easy to use and figure out, even if you dont speak the language).
Walking from the hotel, you can get to the Sagrada Familia in less than 20 minutes, and Park Guell in about 40 (although it's a fairly uphill walk). You can get to the city center in about 40 minutes if you decide to walk.
Check out is at noon, but the hotel will safely hold on to your luggage for you after noon. This was a great service and allowed us to visit 3 more sights in the city before we left at sunset.
The staff were all extremely friendly and helpful.