I would tell them that the Cherry Blossom is the perfect place to have a wedding and reception inn one place. The staff is attentive and did a great job taking care of our needs.

If you are thinking of booking them, do it. The Cherry Blossom is your venue. I had to do all the planning for my wedding myself and I don't know if I would have been able to do it without their help. Not only was it one of the best values I could find in the area, but it felt really special and fun to have all our friends and family on the boat with us. Plus everybody is all in one place and can relax and enjoy the day rather than trying to drive to a different location for the reception. All our guests loved it, and Old Town is great to walk around afterwards.
My advice is to book for slightly longer than you think you need because time will fly. Also, the style of the interior is Victorian with neutral pinks and greens. I worked touches of the colors and style into my table settings and I think it really tied the room together and looked classy. The inside is so pretty, you don't really have to do much.
You do have to use one of their approved vendors, but that is really for the best since you can be confident they know the boat well. I went with King Street Blues for my caterer, and the food was great and the owner really fantastic to work with, but sadly he couldn't be there the day of and his crew did actually flub up on some small things. I think this was probably just miscommunication, but if Rick can't be there, you might want to make sure to speak with whoever will be heading up the catering crew and just make sure you are on the same page. But all that had nothing to do with PRC, who could not have been better.
When pricing things out, consider you probably don't need to rent any chairs since they are on the boat, so the Cherry Blossom might actually be cheaper than other places once you take that into account. And if you need to save some money, we skipped the open bar and just had champagne and a soda bar, which was perfect, and we left at noon, which worked out well for people driving in from out of town. Excellent, excellent venue.

I chartered the Cherry Blossom with Potomac River Boat for a wedding preparty. Everyone was great to deal with leading up to the party and amazing the day of! Thanks so much! Highly recommend!