This hotel is in a great location - walking distance from Museum's Quartier, in the Mariahilferstrasse shopping district, pubs and restaurants are close by.

The hotel itself is in a pretty run down building with a dark lobby entrance. My room, which was the budget double, was unbearably cold even with the radiator all the way up. The owners provided extra blankets to help and I rearranged the curtains in the room to try to ensure as much heat as possible from the radiator reached the room instead of the window well. Still, leaving the covers was nearly unbearable and, while the proprietors said they worked to improve the temperature, I think the slight warm up in the room could only be attributed to a warm up outside.

I am recommending with reservations simply because the location was great. I would say try other places nearby and, if you can't find one in your budget, go with this place.

I stayed here several months ago and I still remember that check in at this hotel was till 19 p.m. Our flight has been delayed and I sent e-mail asking to wait for us if it possible. I was promised that they would wait for us. In fact our plane has landed in time, even a bit earlier. So we arrived at the pension appr. at 18 p.m. And the first thing I've known upon arrival that room I booked is not available. It was pretty weird considering the fact I contacted the hotel in advance. Moreover I was suggested to have an available triple room - and pay exactly for triple room, although I booked the cheapest twin room with shared facilities. It is not fair and it's not OK at all.
I understand mistakes happen, but all around the world it goes without saying that customer can't be responsible for the hotel's mistakes.
Finally the owner made a discount for a few euros but I don't think that hotel is an appropriate place for arguing about price.
As for the pension itself, the best thing is location which is extremely convenient. As for the room, I didn't like a few things - very old cheap furniture, strange smell and the curtain instead of the door to the bathroom.
Next time I'll definitely try another place.

Please do not stay here! The hotel works with online booking companies to create fraudulent bookings. I did not even have a reservation with the Pension Mozart and ended up paying for a no-show. $515 on the credit card and then a complete nightmare to try to get it back (I have still not succeeded). Visa and Mastercard are in tough because the hotel steals or works with booking agents that have your credit information, so its often up to the hotel to forgive the charge. The management is about as rude as could be imagined. Please do not book here as they evidently will do anything to screw over guests and potential guests, and people who do not even have a reservation.

Excellent location, but the room was uncomfortable and dirty, the entrance in the building was a little scary.