It seems to me that the moonkin form, although having insane armor, is a terrible form to solo in. This is mainly because that you cannot heal, so if someone is attacking you, you must revert to humanoid, slap on some HoTs, then either go back into moonkin or fight in humanoid.
Unless you can come up with enough DPS to kill the enemy before he kills you, which is very hard as Balance Druids most powerful aspect is that they can outlast an enemy through HoTs and Moonfire.
I know moonkin is amazing when coupled with other spellcasters in a party, but if you're taking all the hits and nobody is healing you, the moonkin goes down quickly.
Does anyone else notice this?