We had a lovely Bank Holiday experience at the Laura Lucy boat. To begin with, it is conveniently close to the Spanish Arch (less than 5 minutes walking). Also, it's next to the Ard Bia at Nimmo's restaurant (fully recommended). If you have a car, you'll park right next to the boat, which is very convenient. Regarding the boat per se, if you are 1.90m like myself, you will have to do your fair share of ducking. But in fairness, that is to be expected on a boat (It enhances the experience!).
Also, the boat can be fully locked to improve security if you are going for a walk; you can even lock the dock for more safety.
I would definitely recommend anyone to stay here if you're looking for a romantic getaway or just love boats (like I do!)