Is crate training good for my dog?

Absolutely!  In fact, most dogs prefer to have a den space of their own which can be achieved by training them to sleep in their own crate.  This can give them a sense of security and a quiet place to rest undisturbed.  When working with a crate it is important not to use it as punishment and to ensure it is the proper size to allow the dog to stand up and turn around freely.  Keeping a cushion or pet blanket in the crate will make the experience of crate training even more comfortable for your dog.