Sorrow of the Divine sulfur flask?

Has anyone else picked one of these up yet? I just did, and while it looks pretty interesting, I'm not familiar enough with using sulfur flasks to know if this is awesome or merely interesting. Thoughts?

For low life that looks awesome.. u might not need to have lorica or shavs... as u would have situational zo. Witch's flask effect nodes ...even though u probably wouldn't stay on the ground for long so u would need a rej.. totem, stone golem.. Even hybrid, it would be really good to replenish both fast.

This unique flask is really bad designed and is completly useless, here is why :

1) You can already have the increased duration mod from a normal sulfure flask.
2) Anybody wanting to make an effecfive use of zealot oath from this flask will already have it from the tree.

Relying only on this flask to get zealot oath will eventually kill you.

It could be used for MoM/EB builds as a temporary mana/eHP potion. So you have ZO when you need it to regen ES and regen life when you face chaos/poison damage f.e.