Ok, so a while ago i spend 400 gold on Questing Balm to:
, then i went to Merlin's Gauntlet to try it out.

I still had 3 doors to choose from, despite refreshing the page few times, anyway it looks like randomisation takes place later as no matter which door i use they all lead to the same web address ".../door".

Did captchas, watched ads, got primary reward, did bonus round and ... hmm. In primary i got 5 satoshis & 6 gold in bonus 4 satoshis & 2 gold, Questing Balm is gone from Lab so allegedly it worked, but how?

Amount of sat & gold receieved with use of QB does not differ from minimal amounts that i was getting without it. I wasn't expecting heaps of sats & gold but what i got was in a range of minimal without QB, sth more than minimal without QB seems to be ~12-15 sats & ~9-12 gold in primary and ~6-8 sats & ~4-5 gold in bonus and higher winnings? Haven't won more than that so i can't tell but if it doubles (as it seems to) it's really not worth spending 400 gold on QB which works only 1 time if there's only 3 lvls of winnings. And as we have no info of possible winnings and number of lvls it's hard to even speculate but my question is: Does it work as intedned?

On Gauntlet page there was no info like: "You have QB so your next try will be more fruitful" or "You used QB and increased your chances of winning big" etc., and i couldn't see that indeed i won slightly more than before or at least that i didn't won minimal prize. QB just disappeared from Lab (yeah i checked before, it was there alright) and that's it.