Actually he was right. QoT can be very strong in 1vs1 against every Demigod but Erebus. If you don't believe me I can show you, just message me ingame.

This is my usual build.

It's also quite good for supporting low-health damage-dealers like TB and Regulus. I can also give you a replay when I play with QoT again (I don't think the old replays work after the patch, but if they do then take a look at this replay).

Well, that's QoT. Mulch is your primary advantage and because it's only skillable at level 5, level 10 and level 15 that means you are strong at 5,6; weak at 7, 8, 9; strong at 10,11; weak at 12,13,14; strong at 15,16; and weak forever after. That's my personal observation after ~300 games with QoT.

I for one will not play QoT anymore until she's fixed and buffed because I've played UB recently and realized how much stronger and much more fun to play this Demigod is in comparison to QoT. And I've not even tried Erebus yet...