We had a great time at Guus's place. It's in a really terrific location -- walking distance to the major sites, and trams nearby if you're tired. Our room was very clean and nice. We shared the bathroom, but it was always very clean, and everyone was considerate. The only thing to mention was a bit of a smoking smell in the apartment, but we just opened the big windows in our room so we didn't smell it. Great experience. We'd absolutely stay there again. Thanks to Guus and Anouk.