Sallyogreydy was born yesterday and is thus far level 13.
It hasn't been too difficult so far, nor did I expect it to be. I once leveled a naked belf warlock to level 20 with no deaths, and so I know early levels are not very gear-dependent. I am a little more concerned about higher levels!
Sally has died twice, once from lag and once from over-confidence with a rare that she later killed, after a brief flirtation with the Spirit Lady at the graveyard.
Her biggest challenge so far is mana, err...lack of mana. She needs a wand, but a wand is not to be had just yet. There is one available from a Mulgore quest, but traveling to Mulgore and doing all the pre-quests needed to get it was more than Sally could face. So she is toughing it out until level 15 when the vendor wands become available.
With a wand, she will not have to make that dreaded decision about what to do with her last drop of mana - Renew, or Smite and hope it crits.