My daughter and I stayed in Robert and Margit's apartment for 3 nights and we couldn't recommend it enough!
The communication was excellent, with lots of tips on how to get to the place, and what to do in the city. Robert warmly greeted us on check-in and he was helpful and cheerful, and engaged my 5 year old in the conversation as well, and also gave us a fare well gift! His English is excellent and they were able to accommodate us even though we booked just several hours before the cut off time (we weren't sure we could travel).
We were given complimentary chocolates and champagne, coffee, and a few more drinks, and there were also essentials such as condiments, extra virgin olive oil, etc, in the cupboards.
The apartment is basically new and has everything, including socket plug adapters for forgetful people arriving from the UK. It's a pleasant space with lots of natural light, and a lot of care has been put into the decor.
It has got excellent links to attractions/city center via the U3, which is just around the corner - 10/15 minutes rides, and there's also a tram station almost in front of the building. There's supermarkets and a pharmacy close by.
All in all we wouldn't charge a thing!