I found that a melee enchantress was the nuts up to NM but really slowed down in hell. Certainly doable, but don't plan on having a killing machine.
A 7-frame zeal is a terrible thing if you are getting in over you head (which melee sorcs have a habit of doing in hell). There's not much worse (other than a fend-whiffing zon) than starting a zeal cycle and then having your sorc die because she couldn't tp away in time. Worse is trying to run/tele away from a bad situation and accident clicking on a monster - starting that 10 minute zeal cycle all over again.
One option in hell would be to wear a Stone armor and cast the clay golem while holding a bloodmoon. But of a but exploit, but the extra semi-durable minion can be very handy (plus you can enchant him to do some damage! ).
If I did another one, I'd probably go with frozen orb as an alternate skill. It's a bit out of character for the build, but I think it would make for a fun balance: whack the critters you're good at killing and just orb the rest to get them out of the way.
-KS