Stayed here at the beginning of February 2014. The location was great... lots of great things to do near the museum district, close to the Red Light District by street car, great restaurants, near Anne Frank House. We drove to Amsterdam and were glad to discover the Park & Rides on the outskirts of the city. If you're bringing a car, I recommend using the P&R as parking is difficult and expensive within the city.
The hotel staff was very friendly and helped us decide how to spend our time in Holland. The breakfast was fine. The hotel features narrow steep stairwells and small rooms (not uncommon here) so if you're bringing a lot of bags or don't want to do the stairs, try to get a room on a lower floor!
I'd buy a transit pass (lots of options: per trip, 48 hr pass, etc) which they can sell you right at the hotel reception. They also sell tickets to local tourist activities (but not Anne Frank House) so I'd check with them first before you go somewhere to avoid standing in lines.
All in all Amsterdam was great, the hotel suited our needs, and we hope to go back!