I made a 24 hour solo side trip to Amsterdam on the way to Dubai from a business trip to Lithuania in January. The decision to go was random so I relied on Tripadvisor reviews on which hotel to take. I was only spending 24 hours in Amsterdam so I needed an affordable hotel in a central location so I don't waste time traveling, and at the same safe for a solo female traveler. And boy, I was beyond happy with the decision.
Location - easy to find, located on the same block as some good restaurants, cafes and theaters. Less than 2 minute walk and you'll find a tourist information center. It's right next to a beautiful canal that you can view from some of the rooms. 3 minute walk to tram station and Leidseplein (for some nightlife and a variety of restaurants from fine dining to fast food)
Rooms - most rooms are overlooking the canal. Their cheaper rooms are tiny, just enough for a double bed, a cabinet, and some room to walk around and place your luggage, but this is expected of hotel rooms in Europe. I got a chance to peek at the bigger rooms and they were surprisingly spacious. My tiny room (around 130Eur) was clean and the bed very comfortable. The windows were adorned with 2 layers of curtains - a sheer one and a thick one to block out the sun. Flat screen TV on the wall showed only 2 english channels but I didn't really care since I was out the whole day anyway.
Bathroom - small but clean and adequate. Adequate supply of towels and toiletries. Shower was big enough to move freely, not cramped. Hair dryer available.
Service - it's the best thing about this hotel. Check in time was I think 1pm but I was there before 11am, so I asked if I could just leave my bags and walk around the area first to kill time. Nathalie, who greeted me like a long lost sister, told me not to worry, my room is ready! She even wanted to upgrade me to a much bigger and way more expensive room (after she saw my huge luggage), however that room was 2 floors higher than my cheaper room so I had to decline the wonderful gift explaining that I'm a couch potato who never exercises and hates stairs (esp after a tiring day of exploring the place). After hearing that Nathalie took my luggage and carried it to my room! She and other Staff helped me with suggestions on where to go, how to get there, which trams to take, approximate price of tours, etc. They booked my taxi for me, and Nathalie served the taxi driver coffee while I was busy getting my stuff ready. She even went up to carry my luggage again!
Breakfast - located in the dining/reception area. The place was cozy and the breakfast was good and fresh. There wasn't much variety but there's enough choices, food was delicious, and the housekeeper cooked nonstop at the end of the room (which gave the place a very homey feel) and kept offering additional food that she's cooking.
The only negative thing about the hotel is the very steep stairs, which is forgivable.
Also just be warned that there are resident cats in the hotel who freely walk around the place. They're adorable and well behaved, but is noteworthy in case you're allergic to cats.