If you have Android, carry the offline (cached) maps of the area and use GPS to navigate to locate the hotel. Though its just off the main Positano thoroughfare, finding the exact side alley can be difficult, as you will see. This applies to not just Maria Luisa but most other places in the region. We were ourselves asked several times for directions by other arriving tourists with baggages while wandering about town later.
Note that Positano is located on a pretty steep hill. If you arrive by public transport, the SITA bus drops you off at main road towards the middle of the hill from where its around 1 km of a walk downshill, if you dont arrange for a taxi that is. There is a small mini bus that does the rounds inside Positano, but its frequency is every half an hour and I think they discourage luggage and/or charge extra for it. You could come by ferry from salerno/sorrento, but then its quite a walk from the marina too. The Fornillo beach is quite a downhill climb from the pensione, you cant be going up and down multiple times a day, unless you are super fit.
We statyed here for 2 nights in June 2013. As others have noted, its a pensione with great views, especially from the common patio on the top. Our room was clean and bright with soft pastel colors, (I think #14) had a view, I was hoping it would be the sea, but it was majorly the hill and if you stand near the window and peek out, you will get to see a 15 degree view of the sea. We had a double room with a mini fridge and cutlery in the room, which was great if you wanted to get breakfast, drinks etc and then have them on the patio. There was a microwave in the common area, which was great as my better half always prefers her coffee steaming hot. The double bed was actually two twin beds aligned together, so confirm that before booking.
It does have a homely feel to it and Carlo is every ready to help you out with questions. The ferry timetables and bus information is available which makes your day planning easier.The breakfast for 5 euro included coffee, bread, jam, butter, yogurt and fruit juice. Would be better if Carlo includes some meats and museli or cereals for an additional price.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.