Key Points. Boston Terriers are one of the most popular dog breeds in the USA. They’re famously outgoing and are known for being family friendly. Some pros include their playful personalities and low maintenance coats. A few drawbacks are their stubbornness and potential health issues. The American Kennel Club places the Cavalier King Charles Spaniel in the Toy category due to its petite stature. On average, a Cavie weighs between 13 and 18 pounds. These little dogs only reach about a foot in height, which makes them excellent lap dogs! The Bichon Frise, meanwhile, ranges from 10 to 20 pounds of pure, fluffy white goodness. One downside of cocker spaniels is that they require a fair amount of exercise. If they do not get enough exercise, they may become bored and destructive. Another downside is that they are prone to separation anxiety and may bark when left alone. Overall, cocker spaniels can make good family pets if they are well-trained and exercised. Conclusion: Pros and Cons of the Cavalier King Charles Spaniel. Many points speak for the Cavalier King Charles Spaniel. These include especially its adaptability and that it is the perfect beginner dog. However, the health factor is a serious problem, which is why the Cavaliers also count as torture breeding and a big minus point. Cavoodle Pros and Cons Pros: High Life Expectancy: Cavoodle’s lifespan is between 13 and 15 years. Both of the Cavoodle’s parent breeds have 10 to 15 years of lifespan thus Cavoodle inherits it from them. Intelligence: Cavoodle is an intelligent breed that can do wonders with its intelligence. View on Amazon. 4. Lillian Ruff Oatmeal Dog Shampoo. This shampoo for cavalier king charles spaniel has oatmeal as its main ingredient, which is great for moisturizing and soothing your dog’s skin and coat. It also has lavender oil and coconut oil that can calm your dog’s nerves and reduce stress during bath time. Virbac’s tartar control chews for dogs help eliminate and control plaque using select plant-based ingredients. They are gluten-free and have a probiotic that aids in digestion and intestinal health. They come in a unique Z-shape design that scrapes the tartar off teeth while chewing. Pros. Pros of the Cavalier King Charles Spaniel Breed. Cavalier King Charles Spaniels possess a range of positive qualities that make them cherished among dog owners. Here are some of the key advantages of this breed: 1. Affectionate and Loving. Pro: Cavaliers are renowned for their affectionate and loving nature. They form strong bonds with their D51RR.