Welcome, Vera of Brandywine!
I'm a native of Harford County, Maryland. I thought the Brandywine was in Pennsylvania. Different Brandywine, or is my geography fuzzy? It's been a while...
Tell us more about your travel plans: how many people and/or pets, how long you plan to travel, types of camp sites you prefer (primitive, full hookups, or something in between)... Also, do you have an intended or preferred tow vehicle? That will help narrow down your options.
One nice thing about Casita
for a newbie... There's a very thorough user's manual that goes into much more detail than the typical manufacturer documentation- with lots of pictures. Sure smooths out the learning curve! http://www.lovemycasita.com/guide.html