Hotel Manofa
I have been several times and the place I liked the best, for a mid-budget hotel is Manofa hotel. The hotel is clean and nice and you get a small breakfast with your stay. We paid about $150 per night with all taxes, and that was the quad room rate. The rooms are large and some have views. The best thing about this place is the location. Steps away from your room is shopping, restaurants, trolley stops, canal cruise pickup and drop off, and within a few blocks the Ann Frank House and museums.
Check out the website.
http://www.manofa-hotel.com/en/index.php
From journal Amsterdam