We went the Friday after Christmas. Was it crowded? Yes. Was the ice choppy? Yes. Did we have fun? YES! The view of the river from the rink was beautiful. Staff were friendly and helpful. A really nice touch we enjoyed was the fire pit for making s'mores.
Tips for your visit: They run the zamboni after each skating session, so we suggest that you arrive 20 minutes early to put on your skates and you can be ready to get on the ice while it's still fresh. Admission is cheap but skate rental is high, so if you own ice skates or can borrow some you will save a bundle. There are lockers to rent so you can store your shoes. Dress in layers, it was a chilly day but we got warm while skating.