We loved staying at Anna's place. She and her father were very helpful and easy with check in and check out, they even let us pick up our bags hours after check out.
If you're looking for a perfectly clean and upmarket neighbourhood this is the wrong appartment for you. It's on the rough side of the Ramblas (as we noticed it) and that's what we like. It felt more like real Barcelona than the very touristic streets, although it is next the Ramblas, the Güellmuseum and the harbour. The places we were hanging out around Universitat, Macba, Harbour, Beach are in wlaking distance. A 24h market is 1 min away. A great skateboarding bar is 2 m away (directly opposite)
The WIFI was very slow, that was a little downer as one of us had to worrk a little and had to find another place to do that.
The rest of the appartment was clean and it is well equipped with clean and working bathroom, washing mashine (incl. detergent), oven, toaster, blender, coffee maker, AC, TV etc.

If we're coming back this would be our first choice again.