My daughter and I arrived in the evening after driving from Regensburg, Germany, and I wove through car and tram traffic as she navigated to Ibis Praha Old Town. We'd looked at Google Streetview ahead of time, so we knew what the parking entrance would look like as we came down the street and we "stuck the landing" on our first pass. Our rental car was an Opel Astra, which was just about as long a vehicle as one would want to take down the tight spiral ramp to hotel parking on level -3. The car's front bumper alarm was chiming while the rear tires were squealing on the curb all the way down to our level.
Check in was quick and easy, including prepaying our parking. Be sure to keep the parking ticket during your stay as the hotel validates it for exit upon checkout. Our room was clean and comfortable and set back from the street, so it was also quiet. (Rooms facing the street will be noisier with tram and other traffic throughout the night.)
Access to Old Town including the Powder Tower, Astronomical Clock, and other attractions were within a 5-15 minute walk, as were restaurants shops. The Prague castle and Strahov Monastery are closer to 45 minutes to an hour walk away (or take the tram), but we enjoy exploring cities on foot.
Bakeries do not open early in Prague, so we stocked up on roadtrip snacks and food from the nearby grocery store the day we left Prague for Kraków.
Would definitely consider this hotel again if we find ourselves back in Prague.