Roof top tents (RTTs) are a popular option for camping, providing a comfortable and convenient way to sleep off the ground and out of the elements. However, not all RTTs are created equal, and there are two main types: soft-shell, and hard-shell, Both have their own set of pros and cons, and the best choice for you will depend on your specific needs and preferences.

Soft-Cover RTTs are made from a lightweight, waterproof material, usually a combination of canvas and mesh. They have more steps to set up and take down, and they can be folded and stored in a smilar way like Hard Shell. They are also typically less expensive than hard-shell RTTs. However, they do not provide as much protection from the elements as hard-shell RTTs, and they are more susceptible to damage from wind, rain, and other weather conditions.

Hard-shell RTTs are made from a more durable material, such as aluminum, 
ABS or fiberglass. They are more expensive than soft-Cover RTTs, but they provide better protection from the elements and are more durable. They are also typically heavier and easier to set up and take down. However, they offer a more "permanent" camping experience and are more secure from the weather, In addtion, they can help load more of your hobbies and camping gears. 

In summary, the choice between a soft-shell or hard-shell RTT will depend on your needs and preferences. Soft-shell RTTs are a good option for those looking for a lightweight, and big space options at a lower price point, while hard-shell RTTs are a better choice for those looking for easier-to-set-up, more protection from the elements and a more permanent camping experience.