Hi Guys,
Frans' place is very clean, 2 flight of stairs but very doable if you are not very old or have some physical issues. Anyways most of the houses near the centre would have the same design. So if you want a really modern house try outside centre. But staying at centre in old buildings has its own charm. It's location is it's USP and house is very cozy and perfect for 2-3 people. This was my 3rd time in Amsterdam, so it's safe to say that I have experienced few Airbnbs there and have had only one bad experience (not this one) and I can surely say that I would recommend this house for other travellers as well. Thanks Frans. Cheers!
Tushar