Grammostola is one of the best begginer genus in the tarantula hobby. It consist of the most docile and long live species of tarantulas. They have a life span of 25 to 35 years! In addition, they are one of the most easiest species to keep because they can tolerate bad husbandry compare to other species from other genus that are very fragile. Most of all, their requirment to thrive in captivity is pretty simple. But from all the things I mentioned what I love about this genus is that most species have a heavy stature. They are very massive and look like a walking tank with a demeanor of a puppy. If you are looking for a bulky spider that reminds you of a moving fortress with friendly personality then you will enjoy this genus in your collection.